[FIX] error_handling: onError works if handling happens between culprit and root

Have a component implementing onError that calls a callback from one of its parent. That parent should not be the original source of the rendering (a parent above is). Make the callback handle the error and trigger an render() Before this commit, the parent did not see it was handling a subtree in error, and did not have a chance to revert that error state in its rendering stack. After this commit, this flow works.
[REL] v2.8.1
2025-10-06 19:59:41 +07:00 · 2025-10-02 12:46:55 +02:00 · 2025-09-23 09:17:54 +02:00 · 2025-09-22 16:59:47 +02:00 · 2025-09-03 13:46:45 +02:00 · 2025-06-30 14:46:16 +02:00
30 changed files with 1753 additions and 169 deletions
@@ -320,6 +320,28 @@ class ComponentB extends owl.Component {

 Note: the props validation code is done by using the [validate utility function](utils.md#validate).

+### `slots` prop
+
+If a component that uses [slots](slots.md) also lists or validates its props, then
+you will have to explicitely allow the `slots` prop (with an `Object` type), or
+allow extra props using the `*` notation mentioned above. This is because slots
+are provided to a component [as props](slots.md#slots-and-props).
+
+For example:
+
+```js
+class MyComponent extends Component {
+  static props = [someProp, slots?];
+}
+
+class MyComponentWithValidation extends Component {
+  static props = {
+    someProp: {type: Number, optional: true},
+    slots : {type: Object, optional: true},
+  }
+}
+```
+
 ## Good Practices

 A `props` object is a collection of values that come from the parent. As such,
@@ -56,17 +56,19 @@ extensions.

 For reference, here is a list of all standard QWeb directives:

-| Name                           | Description                                                     |
-| ------------------------------ | --------------------------------------------------------------- |
-| `t-esc`                        | [Outputting safely a value](#outputting-data)                   |
-| `t-out`                        | [Outputting value, possibly without escaping](#outputting-data) |
-| `t-set`, `t-value`             | [Setting variables](#setting-variables)                         |
-| `t-if`, `t-elif`, `t-else`,    | [conditionally rendering](#conditionals)                        |
-| `t-foreach`, `t-as`            | [Loops](#loops)                                                 |
-| `t-att`, `t-attf-*`, `t-att-*` | [Dynamic attributes](#dynamic-attributes)                       |
-| `t-call`                       | [Rendering sub templates](#sub-templates)                       |
-| `t-debug`, `t-log`             | [Debugging](#debugging)                                         |
-| `t-translation`                | [Disabling the translation of a node](translations.md)          |
+| Name                           | Description                                                             |
+| ------------------------------ | ----------------------------------------------------------------------- |
+| `t-esc`                        | [Outputting safely a value](#outputting-data)                           |
+| `t-out`                        | [Outputting value, possibly without escaping](#outputting-data)         |
+| `t-set`, `t-value`             | [Setting variables](#setting-variables)                                 |
+| `t-if`, `t-elif`, `t-else`,    | [conditionally rendering](#conditionals)                                |
+| `t-foreach`, `t-as`            | [Loops](#loops)                                                         |
+| `t-att`, `t-attf-*`, `t-att-*` | [Dynamic attributes](#dynamic-attributes)                               |
+| `t-call`                       | [Rendering sub templates](#sub-templates)                               |
+| `t-debug`, `t-log`             | [Debugging](#debugging)                                                 |
+| `t-translation`                | [Disabling the translation of a node](translations.md)                  |
+| `t-translation-context`        | [Context of translations within a node](translations.md)                |
+| `t-translation-context-*`      | [Context of translation for a specific node attribute](translations.md) |

 The component system in Owl requires additional directives, to express various
 needs. Here is a list of all Owl specific directives:
@@ -191,6 +193,15 @@ The first `t-out` will act as a `t-esc` directive, which means that the content
 of `value1` will be escaped. However, since `value2` has been tagged as a markup,
 this will be injected as html.

+`markup` can also be used as a tag function, allowing the interpolated values to
+be safely escaped:
+
+```js
+const maliciousInput = "<script>alert('💥💥')</script>";
+// <b>&lt;script&gt;alert(&#x27;💥💥&#x27;)&lt;/script&gt;</b>
+const value = markup`<b>${maliciousInput}</b>`;
+```
+
 ### Setting Variables

 QWeb allows creating variables from within the template, to memoize a computation (to use it multiple times), give a piece of data a clearer name, ...
@@ -1,17 +1,28 @@
 # 🦉 Translations 🦉

 If properly setup, Owl can translate all rendered templates. To do
-so, it needs a translate function, which takes a string and returns a string.
+so, it needs a translate function, which takes
+
+- a string (the term to translate)
+- a string (the translation context of the term)
+  and returns a string.

 For example:

 ```js
 const translations = {
-  hello: "bonjour",
-  yes: "oui",
-  no: "non",
+  fr: {
+    hello: "bonjour",
+    yes: "oui",
+    no: "non",
+  },
+  pt: {
+    hello: "bom dia",
+    yes: "sim",
+    no: "não",
+  },
 };
-const translateFn = (str) => translations[str] || str;
+const translateFn = (str, ctx) => translations[ctx]?.[str] || str;

 const app = new App(Root, { templates, tranaslateFn });
 // ...
@@ -27,6 +38,11 @@ Once setup, all rendered templates will be translated using `translateFn`:
  `placeholder`, `label` and `alt`,
 - translating text nodes can be disabled with the special attribute `t-translation`,
  if its value is `off`.
+- the translate function receives as second parameter a context that can be used
+  to contextualized the translation. That context can be set globally on a node
+  and its children by using `t-translation-context`. If a specific node
+  attribute `x` needs another context, that context can be specified with a
+  special directive `t-translation-context-x`.

 So, with the above `translateFn`, the following templates:

@@ -46,6 +62,22 @@ will be rendered as:
 <input placeholder="bonjour" other="yes"/>
 ```

+and the following template:
+
+```xml
+<div t-translation-context="fr" title="hello">hello</div>
+<div>Are you sure?</div>
+<input t-translation-context-placeholder="pt" placeholder="hello" other="yes"/>
+```
+
+will be rendered as:
+
+```xml
+<div title="bonjour">bonjour</div>
+<div>Are you sure?</div>
+<input placeholder="bom dia" other="yes"/>
+```
+
 Note that the translation is done during the compilation of the template, not
 when it is rendered.

@@ -276,13 +276,39 @@ function inOwnerDocument(el) {
    const rootNode = el.getRootNode();
    return rootNode instanceof ShadowRoot && el.ownerDocument.contains(rootNode.host);
 }
+/**
+ * Determine whether the given element is contained in a specific root documnet:
+ * either directly or with a shadow root in between or in an iframe.
+ */
+function isAttachedToDocument(element, documentElement) {
+    let current = element;
+    const shadowRoot = documentElement.defaultView.ShadowRoot;
+    while (current) {
+        if (current === documentElement) {
+            return true;
+        }
+        if (current.parentNode) {
+            current = current.parentNode;
+        }
+        else if (current instanceof shadowRoot && current.host) {
+            current = current.host;
+        }
+        else {
+            return false;
+        }
+    }
+    return false;
+}
 function validateTarget(target) {
    // Get the document and HTMLElement corresponding to the target to allow mounting in iframes
    const document = target && target.ownerDocument;
    if (document) {
+        if (!document.defaultView) {
+            throw new OwlError("Cannot mount a component: the target document is not attached to a window (defaultView is missing)");
+        }
        const HTMLElement = document.defaultView.HTMLElement;
        if (target instanceof HTMLElement || target instanceof ShadowRoot) {
-            if (!document.body.contains(target instanceof HTMLElement ? target : target.host)) {
+            if (!isAttachedToDocument(target, document)) {
                throw new OwlError("Cannot mount a component on a detached dom node");
            }
            return;
@@ -319,12 +345,40 @@ async function loadFile(url) {
 */
 class Markup extends String {
 }
-/*
- * Marks a value as safe, that is, a value that can be injected as HTML directly.
- * It should be used to wrap the value passed to a t-out directive to allow a raw rendering.
- */
-function markup(value) {
-    return new Markup(value);
+function htmlEscape(str) {
+    if (str instanceof Markup) {
+        return str;
+    }
+    if (str === undefined) {
+        return markup("");
+    }
+    if (typeof str === "number") {
+        return markup(String(str));
+    }
+    [
+        ["&", "&amp;"],
+        ["<", "&lt;"],
+        [">", "&gt;"],
+        ["'", "&#x27;"],
+        ['"', "&quot;"],
+        ["`", "&#x60;"],
+    ].forEach((pairs) => {
+        str = String(str).replace(new RegExp(pairs[0], "g"), pairs[1]);
+    });
+    return markup(str);
+}
+function markup(valueOrStrings, ...placeholders) {
+    if (!Array.isArray(valueOrStrings)) {
+        return new Markup(valueOrStrings);
+    }
+    const strings = valueOrStrings;
+    let acc = "";
+    let i = 0;
+    for (; i < placeholders.length; ++i) {
+        acc += strings[i] + htmlEscape(placeholders[i]);
+    }
+    acc += strings[i];
+    return new Markup(acc);
 }

 function createEventHandler(rawEvent) {
@@ -3738,6 +3792,7 @@ function createContext(parentCtx, params) {
        index: 0,
        forceNewBlock: true,
        translate: parentCtx.translate,
+        translationCtx: parentCtx.translationCtx,
        tKeyExpr: null,
        nameSpace: parentCtx.nameSpace,
        tModelSelectedExpr: parentCtx.tModelSelectedExpr,
@@ -3795,7 +3850,16 @@ class CodeTarget {
        return key;
    }
 }
-const TRANSLATABLE_ATTRS = ["label", "title", "placeholder", "alt"];
+const TRANSLATABLE_ATTRS = [
+    "alt",
+    "aria-label",
+    "aria-placeholder",
+    "aria-roledescription",
+    "aria-valuetext",
+    "label",
+    "placeholder",
+    "title",
+];
 const translationRE = /^(\s*)([\s\S]+?)(\s*)$/;
 class CodeGenerator {
    constructor(ast, options) {
@@ -3840,6 +3904,7 @@ class CodeGenerator {
            forceNewBlock: false,
            isLast: true,
            translate: true,
+            translationCtx: "",
            tKeyExpr: null,
        });
        // define blocks and utility functions
@@ -3977,9 +4042,9 @@ class CodeGenerator {
        })
            .join("");
    }
-    translate(str) {
+    translate(str, translationCtx) {
        const match = translationRE.exec(str);
-        return match[1] + this.translateFn(match[2]) + match[3];
+        return match[1] + this.translateFn(match[2], translationCtx) + match[3];
    }
    /**
     * @returns the newly created block name, if any
@@ -4020,7 +4085,9 @@ class CodeGenerator {
                return this.compileTSlot(ast, ctx);
            case 16 /* TTranslation */:
                return this.compileTTranslation(ast, ctx);
-            case 17 /* TPortal */:
+            case 17 /* TTranslationContext */:
+                return this.compileTTranslationContext(ast, ctx);
+            case 18 /* TPortal */:
                return this.compileTPortal(ast, ctx);
        }
    }
@@ -4058,7 +4125,7 @@ class CodeGenerator {
        let { block, forceNewBlock } = ctx;
        let value = ast.value;
        if (value && ctx.translate !== false) {
-            value = this.translate(value);
+            value = this.translate(value, ctx.translationCtx);
        }
        if (!ctx.inPreTag) {
            value = value.replace(whitespaceRE, " ");
@@ -4093,6 +4160,7 @@ class CodeGenerator {
        return `[${modifiersCode}${this.captureExpression(handler)}, ctx]`;
    }
    compileTDomNode(ast, ctx) {
+        var _a;
        let { block, forceNewBlock } = ctx;
        const isNewBlock = !block || forceNewBlock || ast.dynamicTag !== null || ast.ns;
        let codeIdx = this.target.code.length;
@@ -4148,7 +4216,8 @@ class CodeGenerator {
                }
            }
            else if (this.translatableAttributes.includes(key)) {
-                attrs[key] = this.translateFn(ast.attrs[key]);
+                const attrTranslationCtx = ((_a = ast.attrsTranslationCtx) === null || _a === void 0 ? void 0 : _a[key]) || ctx.translationCtx;
+                attrs[key] = this.translateFn(ast.attrs[key], attrTranslationCtx);
            }
            else {
                expr = `"${ast.attrs[key]}"`;
@@ -4470,7 +4539,7 @@ class CodeGenerator {
        const isNewBlock = !block || forceNewBlock;
        let codeIdx = this.target.code.length;
        if (isNewBlock) {
-            const n = ast.content.filter((c) => c.type !== 6 /* TSet */).length;
+            const n = ast.content.filter((c) => !c.hasNoRepresentation).length;
            let result = null;
            if (n <= 1) {
                for (let child of ast.content) {
@@ -4484,15 +4553,15 @@ class CodeGenerator {
        let index = 0;
        for (let i = 0, l = ast.content.length; i < l; i++) {
            const child = ast.content[i];
-            const isTSet = child.type === 6 /* TSet */;
+            const forceNewBlock = !child.hasNoRepresentation;
            const subCtx = createContext(ctx, {
                block,
                index,
-                forceNewBlock: !isTSet,
+                forceNewBlock,
                isLast: ctx.isLast && i === l - 1,
            });
            this.compileAST(child, subCtx);
-            if (!isTSet) {
+            if (forceNewBlock) {
                index++;
            }
        }
@@ -4592,7 +4661,7 @@ class CodeGenerator {
        else {
            let value;
            if (ast.defaultValue) {
-                const defaultValue = toStringExpression(ctx.translate ? this.translate(ast.defaultValue) : ast.defaultValue);
+                const defaultValue = toStringExpression(ctx.translate ? this.translate(ast.defaultValue, ctx.translationCtx) : ast.defaultValue);
                if (ast.value) {
                    value = `withDefault(${expr}, ${defaultValue})`;
                }
@@ -4626,9 +4695,10 @@ class CodeGenerator {
     * "some-prop"       "state"          "'some-prop': ctx['state']"
     * "onClick.bind"    "onClick"        "onClick: bind(ctx, ctx['onClick'])"
     */
-    formatProp(name, value) {
+    formatProp(name, value, attrsTranslationCtx, translationCtx) {
        if (name.endsWith(".translate")) {
-            value = toStringExpression(this.translateFn(value));
+            const attrTranslationCtx = (attrsTranslationCtx === null || attrsTranslationCtx === void 0 ? void 0 : attrsTranslationCtx[name]) || translationCtx;
+            value = toStringExpression(this.translateFn(value, attrTranslationCtx));
        }
        else {
            value = this.captureExpression(value);
@@ -4650,8 +4720,8 @@ class CodeGenerator {
        name = /^[a-z_]+$/i.test(name) ? name : `'${name}'`;
        return `${name}: ${value || undefined}`;
    }
-    formatPropObject(obj) {
-        return Object.entries(obj).map(([k, v]) => this.formatProp(k, v));
+    formatPropObject(obj, attrsTranslationCtx, translationCtx) {
+        return Object.entries(obj).map(([k, v]) => this.formatProp(k, v, attrsTranslationCtx, translationCtx));
    }
    getPropString(props, dynProps) {
        let propString = `{${props.join(",")}}`;
@@ -4664,7 +4734,9 @@ class CodeGenerator {
        let { block } = ctx;
        // props
        const hasSlotsProp = "slots" in (ast.props || {});
-        const props = ast.props ? this.formatPropObject(ast.props) : [];
+        const props = ast.props
+            ? this.formatPropObject(ast.props, ast.propsTranslationCtx, ctx.translationCtx)
+            : [];
        // slots
        let slotDef = "";
        if (ast.slots) {
@@ -4687,7 +4759,7 @@ class CodeGenerator {
                    params.push(`__scope: "${scope}"`);
                }
                if (ast.slots[slotName].attrs) {
-                    params.push(...this.formatPropObject(ast.slots[slotName].attrs));
+                    params.push(...this.formatPropObject(ast.slots[slotName].attrs, ast.slots[slotName].attrsTranslationCtx, ctx.translationCtx));
                }
                const slotInfo = `{${params.join(", ")}}`;
                slotStr.push(`'${slotName}': ${slotInfo}`);
@@ -4792,15 +4864,16 @@ class CodeGenerator {
            isMultiple = isMultiple || this.slotNames.has(ast.name);
            this.slotNames.add(ast.name);
        }
-        const dynProps = ast.attrs ? ast.attrs["t-props"] : null;
-        if (ast.attrs) {
-            delete ast.attrs["t-props"];
-        }
+        const attrs = { ...ast.attrs };
+        const dynProps = attrs["t-props"];
+        delete attrs["t-props"];
        let key = this.target.loopLevel ? `key${this.target.loopLevel}` : "key";
        if (isMultiple) {
            key = this.generateComponentKey(key);
        }
-        const props = ast.attrs ? this.formatPropObject(ast.attrs) : [];
+        const props = ast.attrs
+            ? this.formatPropObject(attrs, ast.attrsTranslationCtx, ctx.translationCtx)
+            : [];
        const scope = this.getPropString(props, dynProps);
        if (ast.defaultContent) {
            const name = this.compileInNewTarget("defaultContent", ast.defaultContent, ctx);
@@ -4833,6 +4906,12 @@ class CodeGenerator {
        }
        return null;
    }
+    compileTTranslationContext(ast, ctx) {
+        if (ast.content) {
+            return this.compileAST(ast.content, Object.assign({}, ctx, { translationCtx: ast.translationCtx }));
+        }
+        return null;
+    }
    compileTPortal(ast, ctx) {
        if (!this.staticDefs.find((d) => d.id === "Portal")) {
            this.staticDefs.push({ id: "Portal", expr: `app.Portal` });
@@ -4898,10 +4977,11 @@ function parseNode(node, ctx) {
        parseTPortal(node, ctx) ||
        parseTCall(node, ctx) ||
        parseTCallBlock(node) ||
+        parseTTranslation(node, ctx) ||
+        parseTTranslationContext(node, ctx) ||
+        parseTKey(node, ctx) ||
        parseTEscNode(node, ctx) ||
        parseTOutNode(node, ctx) ||
-        parseTKey(node, ctx) ||
-        parseTTranslation(node, ctx) ||
        parseTSlot(node, ctx) ||
        parseComponent(node, ctx) ||
        parseDOMNode(node, ctx) ||
@@ -4969,19 +5049,29 @@ function parseTCustom(node, ctx) {
 function parseTDebugLog(node, ctx) {
    if (node.hasAttribute("t-debug")) {
        node.removeAttribute("t-debug");
-        return {
+        const content = parseNode(node, ctx);
+        const ast = {
            type: 12 /* TDebug */,
-            content: parseNode(node, ctx),
+            content,
        };
+        if (content === null || content === void 0 ? void 0 : content.hasNoRepresentation) {
+            ast.hasNoRepresentation = true;
+        }
+        return ast;
    }
    if (node.hasAttribute("t-log")) {
        const expr = node.getAttribute("t-log");
        node.removeAttribute("t-log");
-        return {
+        const content = parseNode(node, ctx);
+        const ast = {
            type: 13 /* TLog */,
            expr,
-            content: parseNode(node, ctx),
+            content,
        };
+        if (content === null || content === void 0 ? void 0 : content.hasNoRepresentation) {
+            ast.hasNoRepresentation = true;
+        }
+        return ast;
    }
    return null;
 }
@@ -5010,6 +5100,7 @@ function parseDOMNode(node, ctx) {
    node.removeAttribute("t-ref");
    const nodeAttrsNames = node.getAttributeNames();
    let attrs = null;
+    let attrsTranslationCtx = null;
    let on = null;
    let model = null;
    for (let attr of nodeAttrsNames) {
@@ -5070,6 +5161,11 @@ function parseDOMNode(node, ctx) {
        else if (attr === "xmlns") {
            ns = value;
        }
+        else if (attr.startsWith("t-translation-context-")) {
+            const attrName = attr.slice(22);
+            attrsTranslationCtx = attrsTranslationCtx || {};
+            attrsTranslationCtx[attrName] = value;
+        }
        else if (attr !== "t-name") {
            if (attr.startsWith("t-") && !attr.startsWith("t-att")) {
                throw new OwlError(`Unknown QWeb directive: '${attr}'`);
@@ -5091,6 +5187,7 @@ function parseDOMNode(node, ctx) {
        tag: tagName,
        dynamicTag,
        attrs,
+        attrsTranslationCtx,
        on,
        ref,
        content: children,
@@ -5204,11 +5301,19 @@ function parseTKey(node, ctx) {
    }
    const key = node.getAttribute("t-key");
    node.removeAttribute("t-key");
-    const body = parseNode(node, ctx);
-    if (!body) {
+    const content = parseNode(node, ctx);
+    if (!content) {
        return null;
    }
-    return { type: 10 /* TKey */, expr: key, content: body };
+    const ast = {
+        type: 10 /* TKey */,
+        expr: key,
+        content,
+    };
+    if (content.hasNoRepresentation) {
+        ast.hasNoRepresentation = true;
+    }
+    return ast;
 }
 // -----------------------------------------------------------------------------
 // t-call
@@ -5231,7 +5336,15 @@ function parseTCall(node, ctx) {
        if (ast && ast.type === 11 /* TComponent */) {
            return {
                ...ast,
-                slots: { default: { content: tcall, scope: null, on: null, attrs: null } },
+                slots: {
+                    default: {
+                        content: tcall,
+                        scope: null,
+                        on: null,
+                        attrs: null,
+                        attrsTranslationCtx: null,
+                    },
+                },
            };
        }
    }
@@ -5309,7 +5422,7 @@ function parseTSetNode(node, ctx) {
    if (node.textContent !== node.innerHTML) {
        body = parseChildren(node, ctx);
    }
-    return { type: 6 /* TSet */, name, value, defaultValue, body };
+    return { type: 6 /* TSet */, name, value, defaultValue, body, hasNoRepresentation: true };
 }
 // -----------------------------------------------------------------------------
 // Components
@@ -5346,9 +5459,15 @@ function parseComponent(node, ctx) {
    node.removeAttribute("t-slot-scope");
    let on = null;
    let props = null;
+    let propsTranslationCtx = null;
    for (let name of node.getAttributeNames()) {
        const value = node.getAttribute(name);
-        if (name.startsWith("t-")) {
+        if (name.startsWith("t-translation-context-")) {
+            const attrName = name.slice(22);
+            propsTranslationCtx = propsTranslationCtx || {};
+            propsTranslationCtx[attrName] = value;
+        }
+        else if (name.startsWith("t-")) {
            if (name.startsWith("t-on-")) {
                on = on || {};
                on[name.slice(5)] = value;
@@ -5392,6 +5511,7 @@ function parseComponent(node, ctx) {
            const slotAst = parseNode(slotNode, ctx);
            let on = null;
            let attrs = null;
+            let attrsTranslationCtx = null;
            let scope = null;
            for (let attributeName of slotNode.getAttributeNames()) {
                const value = slotNode.getAttribute(attributeName);
@@ -5399,6 +5519,11 @@ function parseComponent(node, ctx) {
                    scope = value;
                    continue;
                }
+                else if (attributeName.startsWith("t-translation-context-")) {
+                    const attrName = attributeName.slice(22);
+                    attrsTranslationCtx = attrsTranslationCtx || {};
+                    attrsTranslationCtx[attrName] = value;
+                }
                else if (attributeName.startsWith("t-on-")) {
                    on = on || {};
                    on[attributeName.slice(5)] = value;
@@ -5409,17 +5534,32 @@ function parseComponent(node, ctx) {
                }
            }
            slots = slots || {};
-            slots[name] = { content: slotAst, on, attrs, scope };
+            slots[name] = { content: slotAst, on, attrs, attrsTranslationCtx, scope };
        }
        // default slot
        const defaultContent = parseChildNodes(clone, ctx);
        slots = slots || {};
        // t-set-slot="default" has priority over content
        if (defaultContent && !slots.default) {
-            slots.default = { content: defaultContent, on, attrs: null, scope: defaultSlotScope };
+            slots.default = {
+                content: defaultContent,
+                on,
+                attrs: null,
+                attrsTranslationCtx: null,
+                scope: defaultSlotScope,
+            };
        }
    }
-    return { type: 11 /* TComponent */, name, isDynamic, dynamicProps, props, slots, on };
+    return {
+        type: 11 /* TComponent */,
+        name,
+        isDynamic,
+        dynamicProps,
+        props,
+        propsTranslationCtx,
+        slots,
+        on,
+    };
 }
 // -----------------------------------------------------------------------------
 // Slots
@@ -5431,6 +5571,7 @@ function parseTSlot(node, ctx) {
    const name = node.getAttribute("t-slot");
    node.removeAttribute("t-slot");
    let attrs = null;
+    let attrsTranslationCtx = null;
    let on = null;
    for (let attributeName of node.getAttributeNames()) {
        const value = node.getAttribute(attributeName);
@@ -5438,6 +5579,11 @@ function parseTSlot(node, ctx) {
            on = on || {};
            on[attributeName.slice(5)] = value;
        }
+        else if (attributeName.startsWith("t-translation-context-")) {
+            const attrName = attributeName.slice(22);
+            attrsTranslationCtx = attrsTranslationCtx || {};
+            attrsTranslationCtx[attrName] = value;
+        }
        else {
            attrs = attrs || {};
            attrs[attributeName] = value;
@@ -5447,19 +5593,59 @@ function parseTSlot(node, ctx) {
        type: 14 /* TSlot */,
        name,
        attrs,
+        attrsTranslationCtx,
        on,
        defaultContent: parseChildNodes(node, ctx),
    };
 }
+// -----------------------------------------------------------------------------
+// Translation
+// -----------------------------------------------------------------------------
+function wrapInTTranslationAST(r) {
+    const ast = { type: 16 /* TTranslation */, content: r };
+    if (r === null || r === void 0 ? void 0 : r.hasNoRepresentation) {
+        ast.hasNoRepresentation = true;
+    }
+    return ast;
+}
 function parseTTranslation(node, ctx) {
    if (node.getAttribute("t-translation") !== "off") {
        return null;
    }
    node.removeAttribute("t-translation");
-    return {
-        type: 16 /* TTranslation */,
-        content: parseNode(node, ctx),
+    const result = parseNode(node, ctx);
+    if ((result === null || result === void 0 ? void 0 : result.type) === 3 /* Multi */) {
+        const children = result.content.map(wrapInTTranslationAST);
+        return makeASTMulti(children);
+    }
+    return wrapInTTranslationAST(result);
+}
+// -----------------------------------------------------------------------------
+// Translation Context
+// -----------------------------------------------------------------------------
+function wrapInTTranslationContextAST(r, translationCtx) {
+    const ast = {
+        type: 17 /* TTranslationContext */,
+        content: r,
+        translationCtx,
    };
+    if (r === null || r === void 0 ? void 0 : r.hasNoRepresentation) {
+        ast.hasNoRepresentation = true;
+    }
+    return ast;
+}
+function parseTTranslationContext(node, ctx) {
+    const translationCtx = node.getAttribute("t-translation-context");
+    if (!translationCtx) {
+        return null;
+    }
+    node.removeAttribute("t-translation-context");
+    const result = parseNode(node, ctx);
+    if ((result === null || result === void 0 ? void 0 : result.type) === 3 /* Multi */) {
+        const children = result.content.map((c) => wrapInTTranslationContextAST(c, translationCtx));
+        return makeASTMulti(children);
+    }
+    return wrapInTTranslationContextAST(result, translationCtx);
 }
 // -----------------------------------------------------------------------------
 // Portal
@@ -5478,7 +5664,7 @@ function parseTPortal(node, ctx) {
        };
    }
    return {
-        type: 17 /* TPortal */,
+        type: 18 /* TPortal */,
        target,
        content,
    };
@@ -5504,6 +5690,13 @@ function parseChildren(node, ctx) {
    }
    return children;
 }
+function makeASTMulti(children) {
+    const ast = { type: 3 /* Multi */, content: children };
+    if (children.every((c) => c.hasNoRepresentation)) {
+        ast.hasNoRepresentation = true;
+    }
+    return ast;
+}
 /**
 * Parse all the child nodes of a given node and return an ast if possible.
 * In the case there are multiple children, they are wrapped in a astmulti.
@@ -5516,7 +5709,7 @@ function parseChildNodes(node, ctx) {
        case 1:
            return children[0];
        default:
-            return { type: 3 /* Multi */, content: children };
+            return makeASTMulti(children);
    }
 }
 /**
@@ -5620,7 +5813,7 @@ function compile(template, options = {
 }

 // do not modify manually. This file is generated by the release script.
-const version = "2.5.3";
+const version = "2.8.1";

 // -----------------------------------------------------------------------------
 //  Scheduler
@@ -5715,13 +5908,6 @@ class Scheduler {
 Scheduler.requestAnimationFrame = window.requestAnimationFrame.bind(window);

 let hasBeenLogged = false;
-const DEV_MSG = () => {
-    const hash = window.owl ? window.owl.__info__.hash : "master";
-    return `Owl is running in 'dev' mode.
-
-This is not suitable for production use.
-See https://github.com/odoo/owl/blob/${hash}/doc/reference/app.md#configuration for more information.`;
-};
 const apps = new Set();
 window.__OWL_DEVTOOLS__ || (window.__OWL_DEVTOOLS__ = { apps, Fiber, RootFiber, toRaw, reactive });
 class App extends TemplateSet {
@@ -5738,7 +5924,7 @@ class App extends TemplateSet {
        }
        this.warnIfNoStaticProps = config.warnIfNoStaticProps || false;
        if (this.dev && !config.test && !hasBeenLogged) {
-            console.info(DEV_MSG());
+            console.info(`Owl is running in 'dev' mode.`);
            hasBeenLogged = true;
        }
        const env = config.env || {};
@@ -6095,9 +6281,9 @@ TemplateSet.prototype._compileTemplate = function _compileTemplate(name, templat
    });
 };

-export { App, Component, EventBus, OwlError, __info__, batched, blockDom, loadFile, markRaw, markup, mount, onError, onMounted, onPatched, onRendered, onWillDestroy, onWillPatch, onWillRender, onWillStart, onWillUnmount, onWillUpdateProps, reactive, status, toRaw, useChildSubEnv, useComponent, useEffect, useEnv, useExternalListener, useRef, useState, useSubEnv, validate, validateType, whenReady, xml };
+export { App, Component, EventBus, OwlError, __info__, batched, blockDom, htmlEscape, loadFile, markRaw, markup, mount, onError, onMounted, onPatched, onRendered, onWillDestroy, onWillPatch, onWillRender, onWillStart, onWillUnmount, onWillUpdateProps, reactive, status, toRaw, useChildSubEnv, useComponent, useEffect, useEnv, useExternalListener, useRef, useState, useSubEnv, validate, validateType, whenReady, xml };


-__info__.date = '2025-01-10T10:10:53.709Z';
-__info__.hash = 'b31fa81';
+__info__.date = '2025-09-23T07:17:45.055Z';
+__info__.hash = '5211116';
 __info__.url = 'https://github.com/odoo/owl';
@@ -1,6 +1,6 @@
 {
  "name": "@odoo/owl",
-  "version": "2.5.3",
+  "version": "2.8.1",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
@@ -1,6 +1,6 @@
 {
  "name": "@odoo/owl",
-  "version": "2.5.3",
+  "version": "2.8.1",
  "description": "Odoo Web Library (OWL)",
  "main": "dist/owl.cjs.js",
  "module": "dist/owl.es.js",
@@ -24,6 +24,7 @@ import {
  ASTTOut,
  ASTTPortal,
  ASTTranslation,
+  ASTTranslationContext,
  ASTTSet,
  ASTType,
  Attrs,
@@ -35,7 +36,7 @@ type BlockType = "block" | "text" | "multi" | "list" | "html" | "comment";
 const whitespaceRE = /\s+/g;

 export interface Config {
-  translateFn?: (s: string) => string;
+  translateFn?: (s: string, translationCtx: string) => string;
  translatableAttributes?: string[];
  dev?: boolean;
 }
@@ -171,6 +172,7 @@ interface Context {
  forceNewBlock: boolean;
  isLast?: boolean;
  translate: boolean;
+  translationCtx: string;
  tKeyExpr: string | null;
  nameSpace?: string;
  tModelSelectedExpr?: string;
@@ -185,6 +187,7 @@ function createContext(parentCtx: Context, params?: Partial<Context>): Context {
      index: 0,
      forceNewBlock: true,
      translate: parentCtx.translate,
+      translationCtx: parentCtx.translationCtx,
      tKeyExpr: null,
      nameSpace: parentCtx.nameSpace,
      tModelSelectedExpr: parentCtx.tModelSelectedExpr,
@@ -251,7 +254,16 @@ class CodeTarget {
  }
 }

-const TRANSLATABLE_ATTRS = ["label", "title", "placeholder", "alt"];
+const TRANSLATABLE_ATTRS = [
+  "alt",
+  "aria-label",
+  "aria-placeholder",
+  "aria-roledescription",
+  "aria-valuetext",
+  "label",
+  "placeholder",
+  "title",
+];
 const translationRE = /^(\s*)([\s\S]+?)(\s*)$/;

 export class CodeGenerator {
@@ -263,7 +275,7 @@ export class CodeGenerator {
  target = new CodeTarget("template");
  templateName?: string;
  dev: boolean;
-  translateFn: (s: string) => string;
+  translateFn: (s: string, translationCtx: string) => string;
  translatableAttributes: string[] = TRANSLATABLE_ATTRS;
  ast: AST;
  staticDefs: { id: string; expr: string }[] = [];
@@ -303,6 +315,7 @@ export class CodeGenerator {
      forceNewBlock: false,
      isLast: true,
      translate: true,
+      translationCtx: "",
      tKeyExpr: null,
    });
    // define blocks and utility functions
@@ -457,9 +470,9 @@ export class CodeGenerator {
      .join("");
  }

-  translate(str: string): string {
+  translate(str: string, translationCtx: string): string {
    const match = translationRE.exec(str) as any;
-    return match[1] + this.translateFn(match[2]) + match[3];
+    return match[1] + this.translateFn(match[2], translationCtx) + match[3];
  }

  /**
@@ -501,6 +514,8 @@ export class CodeGenerator {
        return this.compileTSlot(ast, ctx);
      case ASTType.TTranslation:
        return this.compileTTranslation(ast, ctx);
+      case ASTType.TTranslationContext:
+        return this.compileTTranslationContext(ast, ctx);
      case ASTType.TPortal:
        return this.compileTPortal(ast, ctx);
    }
@@ -542,7 +557,7 @@ export class CodeGenerator {

    let value = ast.value;
    if (value && ctx.translate !== false) {
-      value = this.translate(value);
+      value = this.translate(value, ctx.translationCtx);
    }
    if (!ctx.inPreTag) {
      value = value.replace(whitespaceRE, " ");
@@ -631,7 +646,8 @@ export class CodeGenerator {
          }
        }
      } else if (this.translatableAttributes.includes(key)) {
-        attrs[key] = this.translateFn(ast.attrs[key]);
+        const attrTranslationCtx = ast.attrsTranslationCtx?.[key] || ctx.translationCtx;
+        attrs[key] = this.translateFn(ast.attrs[key], attrTranslationCtx);
      } else {
        expr = `"${ast.attrs[key]}"`;
        attrName = key;
@@ -979,7 +995,7 @@ export class CodeGenerator {
    const isNewBlock = !block || forceNewBlock;
    let codeIdx = this.target.code.length;
    if (isNewBlock) {
-      const n = ast.content.filter((c) => c.type !== ASTType.TSet).length;
+      const n = ast.content.filter((c) => !c.hasNoRepresentation).length;
      let result: string | null = null;
      if (n <= 1) {
        for (let child of ast.content) {
@@ -993,15 +1009,15 @@ export class CodeGenerator {
    let index = 0;
    for (let i = 0, l = ast.content.length; i < l; i++) {
      const child = ast.content[i];
-      const isTSet = child.type === ASTType.TSet;
+      const forceNewBlock = !child.hasNoRepresentation;
      const subCtx = createContext(ctx, {
        block,
        index,
-        forceNewBlock: !isTSet,
+        forceNewBlock,
        isLast: ctx.isLast && i === l - 1,
      });
      this.compileAST(child, subCtx);
-      if (!isTSet) {
+      if (forceNewBlock) {
        index++;
      }
    }
@@ -1104,7 +1120,7 @@ export class CodeGenerator {
      let value: string;
      if (ast.defaultValue) {
        const defaultValue = toStringExpression(
-          ctx.translate ? this.translate(ast.defaultValue) : ast.defaultValue
+          ctx.translate ? this.translate(ast.defaultValue, ctx.translationCtx) : ast.defaultValue
        );
        if (ast.value) {
          value = `withDefault(${expr}, ${defaultValue})`;
@@ -1139,9 +1155,15 @@ export class CodeGenerator {
   * "some-prop"       "state"          "'some-prop': ctx['state']"
   * "onClick.bind"    "onClick"        "onClick: bind(ctx, ctx['onClick'])"
   */
-  formatProp(name: string, value: string): string {
+  formatProp(
+    name: string,
+    value: string,
+    attrsTranslationCtx: { [name: string]: string } | null,
+    translationCtx: string
+  ): string {
    if (name.endsWith(".translate")) {
-      value = toStringExpression(this.translateFn(value));
+      const attrTranslationCtx = attrsTranslationCtx?.[name] || translationCtx;
+      value = toStringExpression(this.translateFn(value, attrTranslationCtx));
    } else {
      value = this.captureExpression(value);
    }
@@ -1163,8 +1185,14 @@ export class CodeGenerator {
    return `${name}: ${value || undefined}`;
  }

-  formatPropObject(obj: { [prop: string]: any }): string[] {
-    return Object.entries(obj).map(([k, v]) => this.formatProp(k, v));
+  formatPropObject(
+    obj: { [prop: string]: any },
+    attrsTranslationCtx: { [name: string]: string } | null,
+    translationCtx: string
+  ): string[] {
+    return Object.entries(obj).map(([k, v]) =>
+      this.formatProp(k, v, attrsTranslationCtx, translationCtx)
+    );
  }

  getPropString(props: string[], dynProps: string | null): string {
@@ -1181,7 +1209,9 @@ export class CodeGenerator {
    let { block } = ctx;
    // props
    const hasSlotsProp = "slots" in (ast.props || {});
-    const props: string[] = ast.props ? this.formatPropObject(ast.props) : [];
+    const props: string[] = ast.props
+      ? this.formatPropObject(ast.props, ast.propsTranslationCtx, ctx.translationCtx)
+      : [];

    // slots
    let slotDef: string = "";
@@ -1205,7 +1235,13 @@ export class CodeGenerator {
          params.push(`__scope: "${scope}"`);
        }
        if (ast.slots[slotName].attrs) {
-          params.push(...this.formatPropObject(ast.slots[slotName].attrs!));
+          params.push(
+            ...this.formatPropObject(
+              ast.slots[slotName].attrs!,
+              ast.slots[slotName].attrsTranslationCtx,
+              ctx.translationCtx
+            )
+          );
        }
        const slotInfo = `{${params.join(", ")}}`;
        slotStr.push(`'${slotName}': ${slotInfo}`);
@@ -1323,16 +1359,17 @@ export class CodeGenerator {
      isMultiple = isMultiple || this.slotNames.has(ast.name);
      this.slotNames.add(ast.name);
    }
-    const dynProps = ast.attrs ? ast.attrs["t-props"] : null;
-    if (ast.attrs) {
-      delete ast.attrs["t-props"];
-    }
+    const attrs = { ...ast.attrs };
+    const dynProps = attrs["t-props"];
+    delete attrs["t-props"];
    let key = this.target.loopLevel ? `key${this.target.loopLevel}` : "key";
    if (isMultiple) {
      key = this.generateComponentKey(key);
    }

-    const props = ast.attrs ? this.formatPropObject(ast.attrs) : [];
+    const props = ast.attrs
+      ? this.formatPropObject(attrs, ast.attrsTranslationCtx, ctx.translationCtx)
+      : [];
    const scope = this.getPropString(props, dynProps);
    if (ast.defaultContent) {
      const name = this.compileInNewTarget("defaultContent", ast.defaultContent, ctx);
@@ -1365,6 +1402,15 @@ export class CodeGenerator {
    }
    return null;
  }
+  compileTTranslationContext(ast: ASTTranslationContext, ctx: Context): string | null {
+    if (ast.content) {
+      return this.compileAST(
+        ast.content,
+        Object.assign({}, ctx, { translationCtx: ast.translationCtx })
+      );
+    }
+    return null;
+  }
  compileTPortal(ast: ASTTPortal, ctx: Context): string {
    if (!this.staticDefs.find((d) => d.id === "Portal")) {
      this.staticDefs.push({ id: "Portal", expr: `app.Portal` });
@@ -27,15 +27,21 @@ export const enum ASTType {
  TSlot,
  TCallBlock,
  TTranslation,
+  TTranslationContext,
  TPortal,
 }

-export interface ASTText {
+export interface BaseAST {
+  type: ASTType;
+  hasNoRepresentation?: true;
+}
+
+export interface ASTText extends BaseAST {
  type: ASTType.Text;
  value: string;
 }

-export interface ASTComment {
+export interface ASTComment extends BaseAST {
  type: ASTType.Comment;
  value: string;
 }
@@ -51,11 +57,12 @@ interface TModelInfo {
  specialInitTargetAttr: string | null;
 }

-export interface ASTDomNode {
+export interface ASTDomNode extends BaseAST {
  type: ASTType.DomNode;
  tag: string;
  content: AST[];
  attrs: Attrs | null;
+  attrsTranslationCtx: Attrs | null;
  ref: string | null;
  on: EventHandlers | null;
  model: TModelInfo | null;
@@ -63,24 +70,24 @@ export interface ASTDomNode {
  ns: string | null;
 }

-export interface ASTMulti {
+export interface ASTMulti extends BaseAST {
  type: ASTType.Multi;
  content: AST[];
 }

-export interface ASTTEsc {
+export interface ASTTEsc extends BaseAST {
  type: ASTType.TEsc;
  expr: string;
  defaultValue: string;
 }

-export interface ASTTOut {
+export interface ASTTOut extends BaseAST {
  type: ASTType.TOut;
  expr: string;
  body: AST[] | null;
 }

-export interface ASTTif {
+export interface ASTTif extends BaseAST {
  type: ASTType.TIf;
  condition: string;
  content: AST;
@@ -88,15 +95,16 @@ export interface ASTTif {
  tElse: AST | null;
 }

-export interface ASTTSet {
+export interface ASTTSet extends BaseAST {
  type: ASTType.TSet;
  name: string;
  value: string | null; // value defined in attribute
  defaultValue: string | null; // value defined in body, if text
  body: AST[] | null; // content of body if not text
+  hasNoRepresentation: true;
 }

-export interface ASTTForEach {
+export interface ASTTForEach extends BaseAST {
  type: ASTType.TForEach;
  collection: string;
  elem: string;
@@ -109,13 +117,13 @@ export interface ASTTForEach {
  key: string | null;
 }

-export interface ASTTKey {
+export interface ASTTKey extends BaseAST {
  type: ASTType.TKey;
  expr: string;
  content: AST;
 }

-export interface ASTTCall {
+export interface ASTTCall extends BaseAST {
  type: ASTType.TCall;
  name: string;
  body: AST[] | null;
@@ -127,48 +135,57 @@ interface SlotDefinition {
  scope: string | null;
  on: EventHandlers | null;
  attrs: Attrs | null;
+  attrsTranslationCtx: Attrs | null;
 }

-export interface ASTComponent {
+export interface ASTComponent extends BaseAST {
  type: ASTType.TComponent;
  name: string;
  isDynamic: boolean;
  dynamicProps: string | null;
  on: EventHandlers | null;
  props: { [name: string]: string } | null;
+  propsTranslationCtx: { [name: string]: string } | null;
  slots: { [name: string]: SlotDefinition } | null;
 }

-export interface ASTSlot {
+export interface ASTSlot extends BaseAST {
  type: ASTType.TSlot;
  name: string;
  attrs: Attrs | null;
+  attrsTranslationCtx: Attrs | null;
  on: EventHandlers | null;
  defaultContent: AST | null;
 }

-export interface ASTTCallBlock {
+export interface ASTTCallBlock extends BaseAST {
  type: ASTType.TCallBlock;
  name: string;
 }

-export interface ASTDebug {
+export interface ASTDebug extends BaseAST {
  type: ASTType.TDebug;
  content: AST | null;
 }

-export interface ASTLog {
+export interface ASTLog extends BaseAST {
  type: ASTType.TLog;
  expr: string;
  content: AST | null;
 }

-export interface ASTTranslation {
+export interface ASTTranslation extends BaseAST {
  type: ASTType.TTranslation;
  content: AST | null;
 }

-export interface ASTTPortal {
+export interface ASTTranslationContext extends BaseAST {
+  type: ASTType.TTranslationContext;
+  content: AST | null;
+  translationCtx: string;
+}
+
+export interface ASTTPortal extends BaseAST {
  type: ASTType.TPortal;
  target: string;
  content: AST;
@@ -192,6 +209,7 @@ export type AST =
  | ASTLog
  | ASTDebug
  | ASTTranslation
+  | ASTTranslationContext
  | ASTTPortal;

 // -----------------------------------------------------------------------------
@@ -241,10 +259,11 @@ function parseNode(node: Node, ctx: ParsingContext): AST | null {
    parseTPortal(node, ctx) ||
    parseTCall(node, ctx) ||
    parseTCallBlock(node, ctx) ||
+    parseTTranslation(node, ctx) ||
+    parseTTranslationContext(node, ctx) ||
+    parseTKey(node, ctx) ||
    parseTEscNode(node, ctx) ||
    parseTOutNode(node, ctx) ||
-    parseTKey(node, ctx) ||
-    parseTTranslation(node, ctx) ||
    parseTSlot(node, ctx) ||
    parseComponent(node, ctx) ||
    parseDOMNode(node, ctx) ||
@@ -321,20 +340,30 @@ function parseTCustom(node: Element, ctx: ParsingContext): AST | null {
 function parseTDebugLog(node: Element, ctx: ParsingContext): AST | null {
  if (node.hasAttribute("t-debug")) {
    node.removeAttribute("t-debug");
-    return {
+    const content = parseNode(node, ctx);
+    const ast: ASTDebug = {
      type: ASTType.TDebug,
-      content: parseNode(node, ctx),
+      content,
    };
+    if (content?.hasNoRepresentation) {
+      ast.hasNoRepresentation = true;
+    }
+    return ast;
  }

  if (node.hasAttribute("t-log")) {
    const expr = node.getAttribute("t-log")!;
    node.removeAttribute("t-log");
-    return {
+    const content = parseNode(node, ctx);
+    const ast: ASTLog = {
      type: ASTType.TLog,
      expr,
-      content: parseNode(node, ctx),
+      content,
    };
+    if (content?.hasNoRepresentation) {
+      ast.hasNoRepresentation = true;
+    }
+    return ast;
  }
  return null;
 }
@@ -368,6 +397,7 @@ function parseDOMNode(node: Element, ctx: ParsingContext): AST | null {

  const nodeAttrsNames = node.getAttributeNames();
  let attrs: ASTDomNode["attrs"] = null;
+  let attrsTranslationCtx: ASTDomNode["attrsTranslationCtx"] = null;
  let on: EventHandlers | null = null;
  let model: TModelInfo | null = null;

@@ -428,6 +458,10 @@ function parseDOMNode(node: Element, ctx: ParsingContext): AST | null {
      throw new OwlError(`Invalid attribute: '${attr}'`);
    } else if (attr === "xmlns") {
      ns = value;
+    } else if (attr.startsWith("t-translation-context-")) {
+      const attrName = attr.slice(22);
+      attrsTranslationCtx = attrsTranslationCtx || {};
+      attrsTranslationCtx[attrName] = value;
    } else if (attr !== "t-name") {
      if (attr.startsWith("t-") && !attr.startsWith("t-att")) {
        throw new OwlError(`Unknown QWeb directive: '${attr}'`);
@@ -450,6 +484,7 @@ function parseDOMNode(node: Element, ctx: ParsingContext): AST | null {
    tag: tagName,
    dynamicTag,
    attrs,
+    attrsTranslationCtx,
    on,
    ref,
    content: children,
@@ -579,11 +614,19 @@ function parseTKey(node: Element, ctx: ParsingContext): AST | null {
  }
  const key = node.getAttribute("t-key")!;
  node.removeAttribute("t-key");
-  const body = parseNode(node, ctx);
-  if (!body) {
+  const content = parseNode(node, ctx);
+  if (!content) {
    return null;
  }
-  return { type: ASTType.TKey, expr: key, content: body };
+  const ast: ASTTKey = {
+    type: ASTType.TKey,
+    expr: key,
+    content,
+  };
+  if (content.hasNoRepresentation) {
+    ast.hasNoRepresentation = true;
+  }
+  return ast;
 }

 // -----------------------------------------------------------------------------
@@ -609,7 +652,15 @@ function parseTCall(node: Element, ctx: ParsingContext): AST | null {
    if (ast && ast.type === ASTType.TComponent) {
      return {
        ...ast,
-        slots: { default: { content: tcall, scope: null, on: null, attrs: null } },
+        slots: {
+          default: {
+            content: tcall,
+            scope: null,
+            on: null,
+            attrs: null,
+            attrsTranslationCtx: null,
+          },
+        },
      };
    }
  }
@@ -697,7 +748,7 @@ function parseTSetNode(node: Element, ctx: ParsingContext): AST | null {
  if (node.textContent !== node.innerHTML) {
    body = parseChildren(node, ctx);
  }
-  return { type: ASTType.TSet, name, value, defaultValue, body };
+  return { type: ASTType.TSet, name, value, defaultValue, body, hasNoRepresentation: true };
 }

 // -----------------------------------------------------------------------------
@@ -744,9 +795,14 @@ function parseComponent(node: Element, ctx: ParsingContext): AST | null {
  let on: ASTComponent["on"] = null;

  let props: ASTComponent["props"] = null;
+  let propsTranslationCtx: ASTComponent["propsTranslationCtx"] = null;
  for (let name of node.getAttributeNames()) {
    const value = node.getAttribute(name)!;
-    if (name.startsWith("t-")) {
+    if (name.startsWith("t-translation-context-")) {
+      const attrName = name.slice(22);
+      propsTranslationCtx = propsTranslationCtx || {};
+      propsTranslationCtx[attrName] = value;
+    } else if (name.startsWith("t-")) {
      if (name.startsWith("t-on-")) {
        on = on || {};
        on[name.slice(5)] = value;
@@ -794,12 +850,17 @@ function parseComponent(node: Element, ctx: ParsingContext): AST | null {
      const slotAst = parseNode(slotNode, ctx);
      let on: SlotDefinition["on"] = null;
      let attrs: Attrs | null = null;
+      let attrsTranslationCtx: Attrs | null = null;
      let scope: string | null = null;
      for (let attributeName of slotNode.getAttributeNames()) {
        const value = slotNode.getAttribute(attributeName)!;
        if (attributeName === "t-slot-scope") {
          scope = value;
          continue;
+        } else if (attributeName.startsWith("t-translation-context-")) {
+          const attrName = attributeName.slice(22);
+          attrsTranslationCtx = attrsTranslationCtx || {};
+          attrsTranslationCtx[attrName] = value;
        } else if (attributeName.startsWith("t-on-")) {
          on = on || {};
          on[attributeName.slice(5)] = value;
@@ -809,7 +870,7 @@ function parseComponent(node: Element, ctx: ParsingContext): AST | null {
        }
      }
      slots = slots || {};
-      slots[name] = { content: slotAst, on, attrs, scope };
+      slots[name] = { content: slotAst, on, attrs, attrsTranslationCtx, scope };
    }

    // default slot
@@ -817,10 +878,25 @@ function parseComponent(node: Element, ctx: ParsingContext): AST | null {
    slots = slots || {};
    // t-set-slot="default" has priority over content
    if (defaultContent && !slots.default) {
-      slots.default = { content: defaultContent, on, attrs: null, scope: defaultSlotScope };
+      slots.default = {
+        content: defaultContent,
+        on,
+        attrs: null,
+        attrsTranslationCtx: null,
+        scope: defaultSlotScope,
+      };
    }
  }
-  return { type: ASTType.TComponent, name, isDynamic, dynamicProps, props, slots, on };
+  return {
+    type: ASTType.TComponent,
+    name,
+    isDynamic,
+    dynamicProps,
+    props,
+    propsTranslationCtx,
+    slots,
+    on,
+  };
 }

 // -----------------------------------------------------------------------------
@@ -834,12 +910,17 @@ function parseTSlot(node: Element, ctx: ParsingContext): AST | null {
  const name = node.getAttribute("t-slot")!;
  node.removeAttribute("t-slot");
  let attrs: Attrs | null = null;
+  let attrsTranslationCtx: Attrs | null = null;
  let on: ASTComponent["on"] = null;
  for (let attributeName of node.getAttributeNames()) {
    const value = node.getAttribute(attributeName)!;
    if (attributeName.startsWith("t-on-")) {
      on = on || {};
      on[attributeName.slice(5)] = value;
+    } else if (attributeName.startsWith("t-translation-context-")) {
+      const attrName = attributeName.slice(22);
+      attrsTranslationCtx = attrsTranslationCtx || {};
+      attrsTranslationCtx[attrName] = value;
    } else {
      attrs = attrs || {};
      attrs[attributeName] = value;
@@ -849,20 +930,65 @@ function parseTSlot(node: Element, ctx: ParsingContext): AST | null {
    type: ASTType.TSlot,
    name,
    attrs,
+    attrsTranslationCtx,
    on,
    defaultContent: parseChildNodes(node, ctx),
  };
 }

+// -----------------------------------------------------------------------------
+// Translation
+// -----------------------------------------------------------------------------
+
+function wrapInTTranslationAST(r: AST | null) {
+  const ast: ASTTranslation = { type: ASTType.TTranslation, content: r };
+  if (r?.hasNoRepresentation) {
+    ast.hasNoRepresentation = true;
+  }
+  return ast;
+}
+
 function parseTTranslation(node: Element, ctx: ParsingContext): AST | null {
  if (node.getAttribute("t-translation") !== "off") {
    return null;
  }
  node.removeAttribute("t-translation");
-  return {
-    type: ASTType.TTranslation,
-    content: parseNode(node, ctx),
+  const result = parseNode(node, ctx);
+  if (result?.type === ASTType.Multi) {
+    const children = result.content.map(wrapInTTranslationAST);
+    return makeASTMulti(children);
+  }
+  return wrapInTTranslationAST(result);
+}
+
+// -----------------------------------------------------------------------------
+// Translation Context
+// -----------------------------------------------------------------------------
+
+function wrapInTTranslationContextAST(r: AST | null, translationCtx: string) {
+  const ast: ASTTranslationContext = {
+    type: ASTType.TTranslationContext,
+    content: r,
+    translationCtx,
  };
+  if (r?.hasNoRepresentation) {
+    ast.hasNoRepresentation = true;
+  }
+  return ast;
+}
+
+function parseTTranslationContext(node: Element, ctx: ParsingContext): AST | null {
+  const translationCtx = node.getAttribute("t-translation-context");
+  if (!translationCtx) {
+    return null;
+  }
+  node.removeAttribute("t-translation-context");
+  const result = parseNode(node, ctx);
+  if (result?.type === ASTType.Multi) {
+    const children = result.content.map((c) => wrapInTTranslationContextAST(c, translationCtx));
+    return makeASTMulti(children);
+  }
+  return wrapInTTranslationContextAST(result, translationCtx);
 }

 // -----------------------------------------------------------------------------
@@ -911,6 +1037,14 @@ function parseChildren(node: Element, ctx: ParsingContext): AST[] {
  return children;
 }

+function makeASTMulti(children: AST[]) {
+  const ast: ASTMulti = { type: ASTType.Multi, content: children };
+  if (children.every((c) => c.hasNoRepresentation)) {
+    ast.hasNoRepresentation = true;
+  }
+  return ast;
+}
+
 /**
 * Parse all the child nodes of a given node and return an ast if possible.
 * In the case there are multiple children, they are wrapped in a astmulti.
@@ -923,7 +1057,7 @@ function parseChildNodes(node: Element, ctx: ParsingContext): AST | null {
    case 1:
      return children[0];
    default:
-      return { type: ASTType.Multi, content: children };
+      return makeASTMulti(children);
  }
 }

@@ -29,15 +29,6 @@ export interface AppConfig<P, E> extends TemplateSetConfig, RootConfig<P, E> {

 let hasBeenLogged = false;

-export const DEV_MSG = () => {
-  const hash = (window as any).owl ? (window as any).owl.__info__.hash : "master";
-
-  return `Owl is running in 'dev' mode.
-
-This is not suitable for production use.
-See https://github.com/odoo/owl/blob/${hash}/doc/reference/app.md#configuration for more information.`;
-};
-
 const apps = new Set<App>();

 declare global {
@@ -88,7 +79,7 @@ export class App<
    }
    this.warnIfNoStaticProps = config.warnIfNoStaticProps || false;
    if (this.dev && !config.test && !hasBeenLogged) {
-      console.info(DEV_MSG());
+      console.info(`Owl is running in 'dev' mode.`);
      hasBeenLogged = true;
    }
    const env = config.env || {};
@@ -55,6 +55,7 @@ export function handleError(params: ErrorParams) {
    let current: Fiber | null = fiber;
    do {
      current.node.fiber = current;
+      fibersInError.set(current, error);
      current = current.parent;
    } while (current);

@@ -41,7 +41,7 @@ export { useComponent, useState } from "./component_node";
 export { status } from "./status";
 export { reactive, markRaw, toRaw } from "./reactivity";
 export { useEffect, useEnv, useExternalListener, useRef, useChildSubEnv, useSubEnv } from "./hooks";
-export { batched, EventBus, whenReady, loadFile, markup } from "./utils";
+export { batched, EventBus, htmlEscape, whenReady, loadFile, markup } from "./utils";
 export {
  onWillStart,
  onMounted,
@@ -12,7 +12,7 @@ const bdom = { text, createBlock, list, multi, html, toggler, comment };
 export interface TemplateSetConfig {
  dev?: boolean;
  translatableAttributes?: string[];
-  translateFn?: (s: string) => string;
+  translateFn?: (s: string, translationCtx: string) => string;
  templates?: string | Document | Record<string, string>;
  getTemplate?: (s: string) => Element | Function | string | void;
  customDirectives?: customDirectives;
@@ -27,7 +27,7 @@ export class TemplateSet {
  rawTemplates: typeof globalTemplates = Object.create(globalTemplates);
  templates: { [name: string]: Template } = {};
  getRawTemplate?: (s: string) => Element | Function | string | void;
-  translateFn?: (s: string) => string;
+  translateFn?: (s: string, translationCtx: string) => string;
  translatableAttributes?: string[];
  Portal = Portal;
  customDirectives: customDirectives;
@@ -35,13 +35,43 @@ export function inOwnerDocument(el?: HTMLElement) {
  return rootNode instanceof ShadowRoot && el.ownerDocument.contains(rootNode.host);
 }

+/**
+ * Determine whether the given element is contained in a specific root documnet:
+ * either directly or with a shadow root in between or in an iframe.
+ */
+function isAttachedToDocument(
+  element: HTMLElement | ShadowRoot,
+  documentElement: Document
+): boolean {
+  let current: Node = element;
+  const shadowRoot = documentElement.defaultView!.ShadowRoot;
+  while (current) {
+    if (current === documentElement) {
+      return true;
+    }
+    if (current.parentNode) {
+      current = current.parentNode;
+    } else if (current instanceof shadowRoot && current.host) {
+      current = current.host;
+    } else {
+      return false;
+    }
+  }
+  return false;
+}
+
 export function validateTarget(target: HTMLElement | ShadowRoot) {
  // Get the document and HTMLElement corresponding to the target to allow mounting in iframes
  const document = target && target.ownerDocument;
  if (document) {
-    const HTMLElement = document.defaultView!.HTMLElement;
+    if (!document.defaultView) {
+      throw new OwlError(
+        "Cannot mount a component: the target document is not attached to a window (defaultView is missing)"
+      );
+    }
+    const HTMLElement = document.defaultView.HTMLElement;
    if (target instanceof HTMLElement || target instanceof ShadowRoot) {
-      if (!document.body.contains(target instanceof HTMLElement ? target : target.host)) {
+      if (!isAttachedToDocument(target, document)) {
        throw new OwlError("Cannot mount a component on a detached dom node");
      }
      return;
@@ -81,10 +111,50 @@ export async function loadFile(url: string): Promise<string> {
 */
 export class Markup extends String {}

+export function htmlEscape(str: any): Markup {
+  if (str instanceof Markup) {
+    return str;
+  }
+  if (str === undefined) {
+    return markup("");
+  }
+  if (typeof str === "number") {
+    return markup(String(str));
+  }
+  [
+    ["&", "&amp;"],
+    ["<", "&lt;"],
+    [">", "&gt;"],
+    ["'", "&#x27;"],
+    ['"', "&quot;"],
+    ["`", "&#x60;"],
+  ].forEach((pairs) => {
+    str = String(str).replace(new RegExp(pairs[0], "g"), pairs[1]);
+  });
+  return markup(str);
+}
+
 /*
 * Marks a value as safe, that is, a value that can be injected as HTML directly.
 * It should be used to wrap the value passed to a t-out directive to allow a raw rendering.
+ *
+ * If called as a tag function, the interpolated strings are escaped.
 */
-export function markup(value: any) {
-  return new Markup(value);
+export function markup(strings: TemplateStringsArray, ...placeholders: unknown[]): Markup;
+export function markup(value: string): Markup;
+export function markup(
+  valueOrStrings: string | TemplateStringsArray,
+  ...placeholders: unknown[]
+): Markup {
+  if (!Array.isArray(valueOrStrings)) {
+    return new Markup(valueOrStrings);
+  }
+  const strings = valueOrStrings;
+  let acc = "";
+  let i = 0;
+  for (; i < placeholders.length; ++i) {
+    acc += strings[i] + htmlEscape(placeholders[i]);
+  }
+  acc += strings[i];
+  return new Markup(acc);
 }
@@ -1,2 +1,2 @@
 // do not modify manually. This file is generated by the release script.
-export const version = "2.5.3";
+export const version = "2.8.1";
@@ -49,6 +49,27 @@ exports[`debugging t-debug on sub template 2`] = `
 }"
 `;

+exports[`debugging t-debug: interaction with t-set 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { isBoundary, withDefault, setContextValue } = helpers;
+  
+  let block1 = createBlock(\`<span><block-text-0/></span>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    ctx = Object.create(ctx);
+    ctx[isBoundary] = 1
+    debugger;
+    setContextValue(ctx, \\"foo\\", 42);
+    debugger;
+    setContextValue(ctx, \\"bar\\", 49);
+    let txt1 = ctx['foo']+ctx['bar'];
+    return block1([txt1]);
+  }
+}"
+`;
+
 exports[`debugging t-log 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -66,3 +87,24 @@ exports[`debugging t-log 1`] = `
  }
 }"
 `;
+
+exports[`debugging t-log: interaction with t-set 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { isBoundary, withDefault, setContextValue } = helpers;
+  
+  let block1 = createBlock(\`<span><block-text-0/></span>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    ctx = Object.create(ctx);
+    ctx[isBoundary] = 1
+    console.log(ctx['foo']);
+    setContextValue(ctx, \\"foo\\", 42);
+    console.log(ctx['bar']);
+    setContextValue(ctx, \\"bar\\", 49);
+    let txt1 = ctx['foo']+ctx['bar'];
+    return block1([txt1]);
+  }
+}"
+`;
@@ -103,3 +103,18 @@ exports[`t-key t-key on sub dom node pushes a child block in its parent 2`] = `
  }
 }"
 `;
+
+exports[`t-key t-key: interaction with t-esc 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<p><block-text-0/></p>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    const tKey_1 = ctx['key'];
+    let txt1 = ctx['text'];
+    return toggler(tKey_1, block1([txt1]));
+  }
+}"
+`;
@@ -0,0 +1,13 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`t-slot compile t-props correctly multiple time 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { callSlot } = helpers;
+  
+  return function template(ctx, node, key = \\"\\") {
+    return callSlot(ctx, node, key, 'default', false, Object.assign({}, {a:1}));
+  }
+}"
+`;
@@ -1,5 +1,144 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP

+exports[`translation context body of t-sets are translated in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { isBoundary, withDefault, setContextValue } = helpers;
+  
+  return function template(ctx, node, key = \\"\\") {
+    ctx = Object.create(ctx);
+    ctx[isBoundary] = 1
+    setContextValue(ctx, \\"label\\", \`traduit\`);
+    return text(ctx['label']);
+  }
+}"
+`;
+
+exports[`translation context default slot params and content translated in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { callSlot } = helpers;
+  
+  let block1 = createBlock(\`<div><block-child-0/></div>\`);
+  
+  function defaultContent1(ctx, node, key = \\"\\") {
+    return text(\` foo \`);
+  }
+  
+  return function template(ctx, node, key = \\"\\") {
+    const b3 = callSlot(ctx, node, key, 'default', false, {param: \`param\`,title: \`título\`}, defaultContent1.bind(this));
+    return block1([], [b3]);
+  }
+}"
+`;
+
+exports[`translation context props with modifier .translate are translated in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  const comp1 = app.createComponent(\`ChildComponent\`, true, false, false, []);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return comp1({text: \`jeu\`}, key + \`__1\`, node, this, null);
+  }
+}"
+`;
+
+exports[`translation context props with modifier .translate are translated in context 2`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<span><block-text-0/></span>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let txt1 = ctx['props'].text;
+    return block1([txt1]);
+  }
+}"
+`;
+
+exports[`translation context slot attrs and text contents are translated in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { capture, markRaw } = helpers;
+  const comp1 = app.createComponent(\`ChildComponent\`, true, true, false, []);
+  
+  function slot1(ctx, node, key = \\"\\") {
+    return text(\`jeu\`);
+  }
+  
+  return function template(ctx, node, key = \\"\\") {
+    const ctx1 = capture(ctx);
+    return comp1({slots: markRaw({'a': {__render: slot1.bind(this), __ctx: ctx1, title: \`título\`}})}, key + \`__1\`, node, this, null);
+  }
+}"
+`;
+
+exports[`translation context slot attrs and text contents are translated in context 2`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { callSlot } = helpers;
+  
+  let block1 = createBlock(\`<div><block-child-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    const b2 = callSlot(ctx, node, key, 'a', false, {});
+    return block1([], [b2]);
+  }
+}"
+`;
+
+exports[`translation context t-translation-context with several children 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div><div/><div/><block-child-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let b2;
+    if (true) {
+      b2 = text(\`\`);
+    }
+    return block1([], [b2]);
+  }
+}"
+`;
+
+exports[`translation context translation of attributes in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div title=\\"titre\\" label=\\"game\\"/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`translation context translation of text in context 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block2 = createBlock(\`<div>word</div>\`);
+  let block3 = createBlock(\`<div>mot</div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    const b2 = block2();
+    const b3 = block3();
+    return multi([b2, b3]);
+  }
+}"
+`;
+
 exports[`translation support body of t-sets are translated 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -30,6 +169,21 @@ exports[`translation support body of t-sets inside translation=off are not trans
 }"
 `;

+exports[`translation support body of t-sets inside translation=off are not translated 2 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { isBoundary, withDefault, setContextValue } = helpers;
+  
+  return function template(ctx, node, key = \\"\\") {
+    ctx = Object.create(ctx);
+    ctx[isBoundary] = 1
+    setContextValue(ctx, \\"label\\", \`untranslated\`);
+    return text(ctx['label']);
+  }
+}"
+`;
+
 exports[`translation support body of t-sets with html content are translated 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -141,6 +295,23 @@ exports[`translation support t-set and falsy t-value: t-body are translated 1`]
 }"
 `;

+exports[`translation support t-translation with several children 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div><div/><div/><block-child-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let b2;
+    if (true) {
+      b2 = text(\`\`);
+    }
+    return block1([], [b2]);
+  }
+}"
+`;
+
 exports[`translation support translation is done on the trimmed text, with extra spaces readded after 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -43,6 +43,7 @@ describe("qweb parser", () => {
      dynamicTag: null,
      content: [],
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -70,6 +71,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -84,6 +86,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -98,6 +101,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -109,6 +113,7 @@ describe("qweb parser", () => {
          tag: "span",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          model: null,
@@ -128,6 +133,7 @@ describe("qweb parser", () => {
          tag: "div",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          model: null,
@@ -139,6 +145,7 @@ describe("qweb parser", () => {
          tag: "span",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          model: null,
@@ -156,6 +163,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -181,6 +189,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -201,6 +210,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -223,6 +233,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -246,6 +257,7 @@ describe("qweb parser", () => {
          tag: "span",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          model: null,
@@ -262,6 +274,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: { class: "abc" },
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -280,6 +293,7 @@ describe("qweb parser", () => {
        height: "90px",
        width: "100px",
      },
+      attrsTranslationCtx: null,
      content: [
        {
          attrs: {
@@ -290,6 +304,7 @@ describe("qweb parser", () => {
            stroke: "green",
            "stroke-width": "1",
          },
+          attrsTranslationCtx: null,
          content: [],
          dynamicTag: null,
          model: null,
@@ -312,6 +327,7 @@ describe("qweb parser", () => {
      parse(`<g><circle cx="50" cy="50" r="4" stroke="green" stroke-width="1" fill="yellow"/></g>`)
    ).toEqual({
      attrs: null,
+      attrsTranslationCtx: null,
      content: [
        {
          attrs: {
@@ -322,6 +338,7 @@ describe("qweb parser", () => {
            stroke: "green",
            "stroke-width": "1",
          },
+          attrsTranslationCtx: null,
          content: [],
          dynamicTag: null,
          model: null,
@@ -348,6 +365,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      content: [
@@ -356,6 +374,7 @@ describe("qweb parser", () => {
          tag: "pre",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          content: [],
@@ -391,6 +410,7 @@ describe("qweb parser", () => {
      tag: "span",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -413,6 +433,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -455,6 +476,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -469,6 +491,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -489,6 +512,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -530,6 +554,7 @@ describe("qweb parser", () => {
        tag: "div",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -607,6 +632,7 @@ describe("qweb parser", () => {
        tag: "div",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -626,6 +652,7 @@ describe("qweb parser", () => {
            tag: "h1",
            dynamicTag: null,
            attrs: null,
+            attrsTranslationCtx: null,
            on: null,
            ref: null,
            model: null,
@@ -639,6 +666,7 @@ describe("qweb parser", () => {
        tag: "h2",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -664,6 +692,7 @@ describe("qweb parser", () => {
      value: "value",
      defaultValue: null,
      body: null,
+      hasNoRepresentation: true,
    });
  });

@@ -674,6 +703,7 @@ describe("qweb parser", () => {
      defaultValue: "ok",
      value: null,
      body: null,
+      hasNoRepresentation: true,
    });

    expect(parse(`<t t-set="v"><div>ok</div></t>`)).toEqual({
@@ -685,6 +715,7 @@ describe("qweb parser", () => {
        {
          type: ASTType.DomNode,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          tag: "div",
          dynamicTag: null,
@@ -694,6 +725,7 @@ describe("qweb parser", () => {
          content: [{ type: ASTType.Text, value: "ok" }],
        },
      ],
+      hasNoRepresentation: true,
    });

    expect(parse(`<t t-set="v"><div>ok</div>abc</t>`)).toEqual({
@@ -705,6 +737,7 @@ describe("qweb parser", () => {
        {
          type: ASTType.DomNode,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          tag: "div",
          dynamicTag: null,
@@ -715,6 +748,7 @@ describe("qweb parser", () => {
        },
        { type: ASTType.Text, value: "abc" },
      ],
+      hasNoRepresentation: true,
    });
  });

@@ -728,6 +762,7 @@ describe("qweb parser", () => {
        defaultValue: "ok",
        value: null,
        body: null,
+        hasNoRepresentation: true,
      },
      tElif: null,
      tElse: null,
@@ -742,6 +777,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -752,7 +788,14 @@ describe("qweb parser", () => {
          condition: "flag",
          content: { type: ASTType.Text, value: "1" },
          tElif: null,
-          tElse: { type: ASTType.TSet, name: "ourvar", value: "0", defaultValue: null, body: null },
+          tElse: {
+            type: ASTType.TSet,
+            name: "ourvar",
+            value: "0",
+            defaultValue: null,
+            body: null,
+            hasNoRepresentation: true,
+          },
        },
      ],
    });
@@ -811,6 +854,7 @@ describe("qweb parser", () => {
        tag: "div",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -853,6 +897,7 @@ describe("qweb parser", () => {
        tag: "span",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -887,6 +932,7 @@ describe("qweb parser", () => {
          tag: "span",
          dynamicTag: null,
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          model: null,
@@ -920,6 +966,7 @@ describe("qweb parser", () => {
          "t-att-selected": "category.id==options.active_category_id",
          "t-att-value": "category.id",
        },
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -940,6 +987,7 @@ describe("qweb parser", () => {
    ).toEqual({
      type: ASTType.DomNode,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -987,6 +1035,7 @@ describe("qweb parser", () => {
        ref: null,
        model: null,
        attrs: null,
+        attrsTranslationCtx: null,
        ns: null,
        content: [{ type: ASTType.TEsc, expr: "item", defaultValue: "" }],
      },
@@ -1010,6 +1059,7 @@ describe("qweb parser", () => {
        name: "Comp",
        dynamicProps: null,
        props: null,
+        propsTranslationCtx: null,
        slots: null,
        on: null,
      },
@@ -1099,6 +1149,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      model: null,
@@ -1139,6 +1190,7 @@ describe("qweb parser", () => {
      tag: "button",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: { click: "add" },
      ref: null,
      model: null,
@@ -1175,6 +1227,7 @@ describe("qweb parser", () => {
      tag: "select",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      content: [
@@ -1183,6 +1236,7 @@ describe("qweb parser", () => {
          tag: "option",
          dynamicTag: null,
          attrs: { value: "1" },
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          content: [],
@@ -1212,6 +1266,7 @@ describe("qweb parser", () => {
      tag: "select",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: null,
      content: [
@@ -1220,6 +1275,7 @@ describe("qweb parser", () => {
          tag: "option",
          dynamicTag: null,
          attrs: { "t-att-value": "valueVar" },
+          attrsTranslationCtx: null,
          on: null,
          ref: null,
          content: [],
@@ -1251,6 +1307,7 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      on: null,
      slots: null,
      isDynamic: false,
@@ -1263,6 +1320,7 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: { a: "1", b: "'b'" },
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: null,
@@ -1275,6 +1333,7 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: "state",
      props: { a: "1" },
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: null,
@@ -1287,6 +1346,7 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: { click: "someMethod" },
      slots: null,
@@ -1329,12 +1389,14 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          content: { type: ASTType.Text, value: "foo" },
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
        },
@@ -1350,12 +1412,14 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          content: { type: ASTType.Text, value: "foo" },
          attrs: { param: "param" },
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
        },
@@ -1370,6 +1434,7 @@ describe("qweb parser", () => {
      isDynamic: false,
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      on: null,
      slots: {
        default: {
@@ -1381,6 +1446,7 @@ describe("qweb parser", () => {
                tag: "span",
                dynamicTag: null,
                attrs: null,
+                attrsTranslationCtx: null,
                content: [],
                ref: null,
                model: null,
@@ -1392,6 +1458,7 @@ describe("qweb parser", () => {
                tag: "div",
                dynamicTag: null,
                attrs: null,
+                attrsTranslationCtx: null,
                content: [],
                ref: null,
                model: null,
@@ -1401,6 +1468,7 @@ describe("qweb parser", () => {
            ],
          },
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
        },
@@ -1415,9 +1483,11 @@ describe("qweb parser", () => {
      name: "MyComponent",
      on: null,
      props: null,
+      propsTranslationCtx: null,
      slots: {
        mySlot: {
          attrs: null,
+          attrsTranslationCtx: null,
          content: null,
          on: null,
          scope: null,
@@ -1434,9 +1504,16 @@ describe("qweb parser", () => {
      isDynamic: false,
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      on: null,
      slots: {
-        name: { content: { type: ASTType.Text, value: "foo" }, attrs: null, on: null, scope: null },
+        name: {
+          content: { type: ASTType.Text, value: "foo" },
+          attrs: null,
+          attrsTranslationCtx: null,
+          on: null,
+          scope: null,
+        },
      },
    });
  });
@@ -1448,11 +1525,13 @@ describe("qweb parser", () => {
      isDynamic: false,
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      on: null,
      slots: {
        name: {
          content: { type: ASTType.Text, value: "foo" },
          attrs: { param: "param" },
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
        },
@@ -1469,12 +1548,14 @@ describe("qweb parser", () => {
      isDynamic: false,
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      on: null,
      slots: {
        name: {
          content: { type: ASTType.Text, value: "foo" },
          on: { click: "doStuff" },
          attrs: null,
+          attrsTranslationCtx: null,
          scope: null,
        },
      },
@@ -1493,16 +1574,24 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          content: { type: ASTType.Text, value: " " },
          attrs: null,
+          attrsTranslationCtx: null,
+          on: null,
+          scope: null,
+        },
+        name: {
+          content: { type: ASTType.Text, value: "foo" },
+          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
        },
-        name: { content: { type: ASTType.Text, value: "foo" }, attrs: null, on: null, scope: null },
      },
    });
  });
@@ -1518,11 +1607,24 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
-        a: { content: { type: ASTType.Text, value: "foo" }, attrs: null, on: null, scope: null },
-        b: { content: { type: ASTType.Text, value: "bar" }, attrs: null, on: null, scope: null },
+        a: {
+          content: { type: ASTType.Text, value: "foo" },
+          attrs: null,
+          attrsTranslationCtx: null,
+          on: null,
+          scope: null,
+        },
+        b: {
+          content: { type: ASTType.Text, value: "bar" },
+          attrs: null,
+          attrsTranslationCtx: null,
+          on: null,
+          scope: null,
+        },
      },
    });
  });
@@ -1533,6 +1635,7 @@ describe("qweb parser", () => {
      name: "myComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: true,
      on: null,
      slots: null,
@@ -1545,6 +1648,7 @@ describe("qweb parser", () => {
      name: "mycomponent",
      dynamicProps: null,
      props: { a: "1", b: "'b'" },
+      propsTranslationCtx: null,
      isDynamic: true,
      on: null,
      slots: null,
@@ -1557,6 +1661,7 @@ describe("qweb parser", () => {
      name: "mycomponent",
      dynamicProps: "state",
      props: { a: "1" },
+      propsTranslationCtx: null,
      isDynamic: true,
      on: null,
      slots: null,
@@ -1587,12 +1692,14 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          content: { body: null, name: "subTemplate", type: ASTType.TCall, context: null },
          attrs: null,
+          attrsTranslationCtx: null,
          scope: null,
          on: null,
        },
@@ -1613,11 +1720,13 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
          content: {
@@ -1626,11 +1735,13 @@ describe("qweb parser", () => {
            name: "Child",
            dynamicProps: null,
            props: null,
+            propsTranslationCtx: null,
            on: null,
            slots: {
              brol: {
                content: { type: ASTType.Text, value: "coucou" },
                attrs: null,
+                attrsTranslationCtx: null,
                scope: null,
                on: null,
              },
@@ -1654,11 +1765,13 @@ describe("qweb parser", () => {
      name: "MyComponent",
      dynamicProps: null,
      props: null,
+      propsTranslationCtx: null,
      isDynamic: false,
      on: null,
      slots: {
        default: {
          attrs: null,
+          attrsTranslationCtx: null,
          on: null,
          scope: null,
          content: {
@@ -1667,11 +1780,13 @@ describe("qweb parser", () => {
            name: "Child",
            dynamicProps: null,
            props: null,
+            propsTranslationCtx: null,
            on: null,
            slots: {
              brol: {
                content: { type: ASTType.Text, value: "coucou" },
                attrs: null,
+                attrsTranslationCtx: null,
                on: null,
                scope: null,
              },
@@ -1691,6 +1806,7 @@ describe("qweb parser", () => {
      type: ASTType.TSlot,
      name: "default",
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      defaultContent: null,
    });
@@ -1701,6 +1817,7 @@ describe("qweb parser", () => {
      type: ASTType.TSlot,
      name: "header",
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      defaultContent: { type: ASTType.Text, value: "default content" },
    });
@@ -1711,6 +1828,7 @@ describe("qweb parser", () => {
      type: ASTType.TSlot,
      name: "default",
      attrs: null,
+      attrsTranslationCtx: null,
      on: { "click.prevent": "doSomething" },
      defaultContent: null,
    });
@@ -1728,6 +1846,7 @@ describe("qweb parser", () => {
        tag: "div",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -1746,6 +1865,7 @@ describe("qweb parser", () => {
        tag: "div",
        dynamicTag: null,
        attrs: null,
+        attrsTranslationCtx: null,
        on: null,
        ref: null,
        model: null,
@@ -1765,6 +1885,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: "name",
      model: null,
@@ -1779,6 +1900,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: "name",
      model: null,
@@ -1795,6 +1917,7 @@ describe("qweb parser", () => {
      tag: "div",
      dynamicTag: null,
      attrs: null,
+      attrsTranslationCtx: null,
      on: null,
      ref: "name",
      model: null,
@@ -1831,6 +1954,7 @@ describe("qweb parser", () => {
      body: {
        content: {
          attrs: null,
+          attrsTranslationCtx: null,
          content: [
            {
              type: ASTType.Text,
@@ -1859,6 +1983,190 @@ describe("qweb parser", () => {
    });
  });

+  test('t-translation="off": interaction with t-esc', async () => {
+    expect(parse(`<span t-esc="a" t-translation="off"/>`)).toEqual({
+      type: ASTType.TTranslation,
+      content: {
+        attrs: null,
+        attrsTranslationCtx: null,
+        content: [
+          {
+            defaultValue: "",
+            expr: "a",
+            type: ASTType.TEsc,
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "span",
+        type: ASTType.DomNode,
+      },
+    });
+  });
+
+  test('t-translation="off": interaction with t-out', async () => {
+    expect(parse(`<span t-out="a" t-translation="off"/>`)).toEqual({
+      type: ASTType.TTranslation,
+      content: {
+        attrs: null,
+        attrsTranslationCtx: null,
+        content: [
+          {
+            body: null,
+            expr: "a",
+            type: ASTType.TOut,
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "span",
+        type: ASTType.DomNode,
+      },
+    });
+  });
+
+  // ---------------------------------------------------------------------------
+  // t-translation-context
+  // ---------------------------------------------------------------------------
+
+  test('t-translation-context="fr"', async () => {
+    expect(parse(`<t t-translation-context="fr">word</t>`)).toEqual({
+      type: ASTType.TTranslationContext,
+      content: {
+        type: ASTType.Text,
+        value: "word",
+      },
+      translationCtx: "fr",
+    });
+
+    expect(parse(`<div t-translation-context="fr">word</div>`)).toEqual({
+      content: {
+        attrs: null,
+        attrsTranslationCtx: null,
+        content: [
+          {
+            type: 0,
+            value: "word",
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "div",
+        type: ASTType.DomNode,
+      },
+      translationCtx: "fr",
+      type: ASTType.TTranslationContext,
+    });
+  });
+
+  test("t-translation-context: interaction with t-esc", async () => {
+    expect(parse(`<span t-esc="a" t-translation-context="fr"/>`)).toEqual({
+      type: ASTType.TTranslationContext,
+      content: {
+        attrs: null,
+        attrsTranslationCtx: null,
+        content: [
+          {
+            defaultValue: "",
+            expr: "a",
+            type: ASTType.TEsc,
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "span",
+        type: ASTType.DomNode,
+      },
+      translationCtx: "fr",
+    });
+  });
+
+  test("t-translation-context: interaction with t-out", async () => {
+    expect(parse(`<span t-out="a" t-translation-context="fr"/>`)).toEqual({
+      type: ASTType.TTranslationContext,
+      content: {
+        attrs: null,
+        attrsTranslationCtx: null,
+        content: [
+          {
+            body: null,
+            expr: "a",
+            type: ASTType.TOut,
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "span",
+        type: ASTType.DomNode,
+      },
+      translationCtx: "fr",
+    });
+  });
+
+  // ---------------------------------------------------------------------------
+  // t-translation-context-attr
+  // ---------------------------------------------------------------------------
+
+  test('t-translation-context="fr" and t-translation-context-title="pt" for a div attr title', async () => {
+    expect(
+      parse(
+        `<div t-translation-context="fr" title="hello" t-translation-context-title="pt">word</div>`
+      )
+    ).toEqual({
+      content: {
+        attrs: { title: "hello" },
+        attrsTranslationCtx: { title: "pt" },
+        content: [
+          {
+            type: 0,
+            value: "word",
+          },
+        ],
+        dynamicTag: null,
+        model: null,
+        ns: null,
+        on: null,
+        ref: null,
+        tag: "div",
+        type: ASTType.DomNode,
+      },
+      translationCtx: "fr",
+      type: ASTType.TTranslationContext,
+    });
+  });
+
+  test('t-translation-context-title="fr" for component prop title', async () => {
+    expect(parse(`<Comp title="hello" t-translation-context-title="fr" />`)).toEqual({
+      dynamicProps: null,
+      isDynamic: false,
+      name: "Comp",
+      on: null,
+      props: {
+        title: "hello",
+      },
+      propsTranslationCtx: {
+        title: "fr",
+      },
+      slots: null,
+      type: ASTType.TComponent,
+    });
+  });
+
  // ---------------------------------------------------------------------------
  // t-model
  // ---------------------------------------------------------------------------
@@ -1866,6 +2174,7 @@ describe("qweb parser", () => {
    expect(parse(`<input t-model="state.stuff" />`)).toEqual({
      type: ASTType.DomNode,
      attrs: null,
+      attrsTranslationCtx: null,
      content: [],
      on: null,
      ref: null,
@@ -1886,6 +2195,7 @@ describe("qweb parser", () => {
    expect(parse(`<input t-model="state['stuff']" />`)).toEqual({
      type: ASTType.DomNode,
      attrs: null,
+      attrsTranslationCtx: null,
      content: [],
      on: null,
      ref: null,
@@ -1906,6 +2216,7 @@ describe("qweb parser", () => {
    expect(parse(`<input t-model.lazy.trim.number="state.stuff" />`)).toEqual({
      type: ASTType.DomNode,
      attrs: null,
+      attrsTranslationCtx: null,
      content: [],
      on: null,
      ref: null,
@@ -1927,6 +2238,7 @@ describe("qweb parser", () => {
  expect(parse(`<textarea t-model="state.stuff" />`)).toEqual({
    type: ASTType.DomNode,
    attrs: null,
+    attrsTranslationCtx: null,
    content: [],
    on: null,
    ref: null,
@@ -1947,6 +2259,7 @@ describe("qweb parser", () => {
  expect(parse(`<input type="checkbox" t-model="state.stuff" />`)).toEqual({
    type: ASTType.DomNode,
    attrs: { type: "checkbox" },
+    attrsTranslationCtx: null,
    content: [],
    on: null,
    ref: null,
@@ -1967,6 +2280,7 @@ describe("qweb parser", () => {
  expect(parse(`<input type="radio" t-model="state.stuff" />`)).toEqual({
    type: ASTType.DomNode,
    attrs: { type: "radio" },
+    attrsTranslationCtx: null,
    content: [],
    on: null,
    ref: null,
@@ -1987,6 +2301,7 @@ describe("qweb parser", () => {
  expect(parse(`<input type="radio" t-model.lazy.trim.number="state.stuff" />`)).toEqual({
    type: ASTType.DomNode,
    attrs: { type: "radio" },
+    attrsTranslationCtx: null,
    content: [],
    on: null,
    ref: null,
@@ -2012,6 +2327,7 @@ describe("qweb parser", () => {
    expect(parse(`<div t-tag="theTag" />`)).toEqual({
      type: ASTType.DomNode,
      attrs: null,
+      attrsTranslationCtx: null,
      content: [],
      on: null,
      ref: null,
@@ -38,4 +38,34 @@ describe("debugging", () => {
    expect(console.log).toHaveBeenCalledWith(45);
    console.log = consoleLog;
  });
+
+  test("t-log: interaction with t-set", () => {
+    const consoleLog = console.log;
+    console.log = jest.fn();
+
+    const template = `
+      <t>
+        <t t-log="foo" t-set="foo" t-value="42"/>
+        <t t-log="bar" t-set="bar" t-value="49"/>
+        <span t-esc="foo + bar"/>
+      </t>
+    `;
+    snapshotTemplate(template);
+    renderToString(template);
+    expect(console.log).toHaveBeenCalledWith(undefined);
+    expect(console.log).toHaveBeenCalledWith(undefined);
+    console.log = consoleLog;
+  });
+
+  test("t-debug: interaction with t-set", () => {
+    const template = `
+      <t>
+        <t t-debug="" t-set="foo" t-value="42"/>
+        <t t-debug="" t-set="bar" t-value="49"/>
+        <span t-esc="foo + bar"/>
+      </t>
+    `;
+    snapshotTemplate(template);
+    renderToString(template);
+  });
 });
@@ -63,4 +63,10 @@ describe("t-key", () => {

    expect(renderToString(template2, { key: "1" })).toBe("<div><h1></h1></div>");
  });
+
+  test("t-key: interaction with t-esc", async () => {
+    const template = `<p t-key="key" t-esc="text"/>`;
+
+    expect(renderToString(template, { key: "1", text: "abc" })).toBe("<p>abc</p>");
+  });
 });
@@ -0,0 +1,15 @@
+import { parseXML } from "../../src/common/utils";
+import { compile } from "../../src/compiler";
+
+describe("t-slot", () => {
+  test("compile t-props correctly multiple time", () => {
+    const template = `<t t-slot="default" t-props="{ a: 1 }"/>`;
+    const parsedTemplate = parseXML(template).firstChild as Element;
+
+    const fn1 = compile(parsedTemplate);
+    expect(fn1.toString()).toMatchSnapshot();
+
+    const fn2 = compile(parsedTemplate);
+    expect(fn2.toString()).toBe(fn1.toString());
+  });
+});
@@ -86,7 +86,7 @@ describe("translation support", () => {

    await mount(SomeComponent, fixture, { translateFn });
    expect(fixture.innerHTML).toBe("<div> mot </div>");
-    expect(translateFn).toHaveBeenCalledWith("word");
+    expect(translateFn).toHaveBeenCalledWith("word", "");
  });

  test("translation works, even if initial string has inner consecutive white space", async () => {
@@ -97,7 +97,7 @@ describe("translation support", () => {
    const translateFn = jest.fn((expr: string) => (expr === "some  word" ? "un mot" : expr));

    await mount(SomeComponent, fixture, { translateFn });
-    expect(translateFn).toHaveBeenCalledWith("some  word");
+    expect(translateFn).toHaveBeenCalledWith("some  word", "");
    expect(fixture.innerHTML).toBe("<div>un mot</div>");
  });

@@ -129,6 +129,21 @@ describe("translation support", () => {
    expect(fixture.innerHTML).toBe("untranslated");
  });

+  test("body of t-sets inside translation=off are not translated 2", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <t>
+          <t t-translation="off" t-set="label">untranslated</t>
+          <t t-esc="label"/>
+        </t>`;
+    }
+
+    const translateFn = () => "translated";
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("untranslated");
+  });
+
  test("body of t-sets with html content are translated", async () => {
    class SomeComponent extends Component {
      static template = xml`
@@ -170,4 +185,159 @@ describe("translation support", () => {
    await mount(SomeComponent, fixture, { translateFn });
    expect(fixture.innerHTML).toBe("translated");
  });
+
+  test("t-translation with several children", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+          <div>
+            <t t-translation="off">
+                <div/>
+                <div/>
+            </t>
+            <t t-if="true"/>
+        </div>
+      `;
+    }
+    await mount(SomeComponent, fixture);
+    expect(fixture.outerHTML).toBe("<div><div><div></div><div></div></div></div>");
+  });
+});
+
+describe("translation context", () => {
+  test("translation of text in context", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <div>word</div>
+        <div t-translation-context="fr">word</div>
+      `;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "fr" ? (expr === "word" ? "mot" : expr) : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("<div>word</div><div>mot</div>");
+    expect(translateFn).toHaveBeenCalledWith("word", "");
+    expect(translateFn).toHaveBeenCalledWith("word", "fr");
+  });
+  test("translation of attributes in context", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <div t-translation-context="en" t-translation-context-title="fr" title="title" label="game"/>
+      `;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "fr" ? (expr === "title" ? "titre" : expr) : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe(`<div title="titre" label="game"></div>`);
+    expect(translateFn).toHaveBeenCalledWith("title", "fr");
+    expect(translateFn).toHaveBeenCalledWith("game", "en");
+  });
+  test("body of t-sets are translated in context", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <t t-set="label" t-translation-context="fr">untranslated</t>
+        <t t-esc="label"/>`;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "fr" ? "traduit" : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("traduit");
+    expect(translateFn).toHaveBeenCalledWith("untranslated", "fr");
+  });
+  test("props with modifier .translate are translated in context", async () => {
+    class ChildComponent extends Component {
+      static props = ["text"];
+      static template = xml`<span t-esc="props.text"/>`;
+    }
+
+    class SomeComponent extends Component {
+      static components = { ChildComponent };
+      static template = xml`
+        <ChildComponent text.translate="game" t-translation-context-text.translate="fr" />`;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "fr" ? "jeu" : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("<span>jeu</span>");
+    expect(translateFn).toHaveBeenCalledWith("game", "fr");
+  });
+  test("slot attrs and text contents are translated in context", async () => {
+    class ChildComponent extends Component {
+      static template = xml`
+        <div t-translation-context="ja">
+          <t t-slot="a"/>
+        </div>`;
+    }
+
+    class SomeComponent extends Component {
+      static components = { ChildComponent };
+      static template = xml`
+        <ChildComponent t-translation-context="fr">
+          <t t-set-slot="a" title.translate="title" t-translation-context-title.translate="pt">game</t>
+        </ChildComponent>
+        `;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "fr" ? "jeu" : translationCtx === "pt" ? "título" : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("<div>jeu</div>");
+    expect(translateFn).toHaveBeenCalledWith("game", "fr");
+    expect(translateFn).toHaveBeenCalledWith("title", "pt");
+  });
+  test("default slot params and content translated in context", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+        <div>
+          <t
+            t-slot="default"
+            t-translation-context="fr"
+            param.translate="param"
+            title.translate="title"
+            t-translation-context-title.translate="pt"
+          >
+            foo
+          </t>
+        </div>`;
+    }
+
+    const translateFn = jest.fn((expr: string, translationCtx: string) =>
+      translationCtx === "pt" ? "título" : expr
+    );
+
+    await mount(SomeComponent, fixture, { translateFn });
+    expect(fixture.innerHTML).toBe("<div> foo </div>");
+    expect(translateFn).toHaveBeenCalledWith("foo", "fr");
+    expect(translateFn).toHaveBeenCalledWith("param", "fr");
+    expect(translateFn).toHaveBeenCalledWith("title", "pt");
+  });
+
+  test("t-translation-context with several children", async () => {
+    class SomeComponent extends Component {
+      static template = xml`
+          <div>
+            <t t-translation-context="ctx">
+                <div/>
+                <div/>
+            </t>
+            <t t-if="true"/>
+        </div>
+      `;
+    }
+    await mount(SomeComponent, fixture);
+    expect(fixture.outerHTML).toBe("<div><div><div></div><div></div></div></div>");
+  });
 });
@@ -94,6 +94,52 @@ exports[`basics no component catching error lead to full app destruction 2`] = `
 }"
 `;

+exports[`basics render from above on error -- handler is not a Root or MountFiber 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  const comp1 = app.createComponent(\`Parent\`, true, false, false, []);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return comp1({}, key + \`__1\`, node, this, null);
+  }
+}"
+`;
+
+exports[`basics render from above on error -- handler is not a Root or MountFiber 2`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  const comp1 = app.createComponent(\`Boom\`, true, false, false, []);
+  
+  let block1 = createBlock(\`<div><block-child-0/><block-child-1/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let b2, b3;
+    if (ctx['error']) {
+      b2 = text(\`Error\`);
+    } else {
+      b3 = comp1({onError: (ctx['handleError']).bind(this)}, key + \`__1\`, node, this, null);
+    }
+    return block1([], [b2, b3]);
+  }
+}"
+`;
+
+exports[`basics render from above on error -- handler is not a Root or MountFiber 3`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div><block-text-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let txt1 = ctx['a'].b.c;
+    return block1([txt1]);
+  }
+}"
+`;
+
 exports[`basics simple catchError 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -233,6 +233,44 @@ function(app, bdom, helpers) {
    expect(mockConsoleError).toBeCalledTimes(0);
    expect(mockConsoleWarn).toBeCalledTimes(0);
  });
+
+  test("render from above on error -- handler is not a Root or MountFiber", async () => {
+    class Boom extends Component {
+      static template = xml`<div t-esc="a.b.c"/>`;
+      setup() {
+        onError((err) => {
+          this.props.onError(err);
+        });
+      }
+    }
+
+    class Parent extends Component {
+      static template = xml`
+        <div>
+          <t t-if="error">Error</t>
+          <t t-else="">
+            <Boom onError.bind="handleError"/>
+          </t>
+        </div>`;
+      static components = { Boom };
+
+      error: any = false;
+
+      handleError(err: Error) {
+        this.error = err;
+        this.render();
+      }
+    }
+
+    class GrandParent extends Component {
+      static template: string = xml`<Parent />`;
+      static components = { Parent };
+    }
+    await mount(GrandParent, fixture);
+    expect(fixture.innerHTML).toBe("<div>Error</div>");
+    expect(mockConsoleError).toBeCalledTimes(0);
+    expect(mockConsoleWarn).toBeCalledTimes(0);
+  });
 });

 describe("errors and promises", () => {
@@ -1,6 +1,6 @@
 import { makeTestFixture, nextAppError, nextTick, snapshotEverything } from "../helpers";
 import { Component, onError, xml, mount, OwlError, useState } from "../../src";
-import { App, DEV_MSG } from "../../src/runtime/app";
+import { App } from "../../src/runtime/app";
 import { validateProps } from "../../src/runtime/template_helpers";
 import { Schema } from "../../src/runtime/validation";

@@ -13,7 +13,7 @@ let mockConsoleWarn: any;

 beforeAll(() => {
  console.info = (message: any) => {
-    if (message === DEV_MSG()) {
+    if (message === `Owl is running in 'dev' mode.`) {
      return;
    }
    info(message);
@@ -11,7 +11,6 @@ import {
  useState,
 } from "../../src";
 import { xml } from "../../src/";
-import { DEV_MSG } from "../../src/runtime/app";
 import { elem, makeTestFixture, nextAppError, nextTick, snapshotEverything } from "../helpers";

 let fixture: HTMLElement;
@@ -30,7 +29,7 @@ snapshotEverything();

 beforeAll(() => {
  console.info = (message: any) => {
-    if (message === DEV_MSG()) {
+    if (message === `Owl is running in 'dev' mode.`) {
      return;
    }
    info(message);
@@ -27,6 +27,58 @@ exports[`shadow_dom can mount app 1`] = `
 }"
 `;

+exports[`shadow_dom can mount app in closed shadow dom 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div class=\\"my-div\\"/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`shadow_dom can mount app inside a separate HTML document 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div class=\\"my-div\\"/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`shadow_dom can mount app inside a shadow child element 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div class=\\"my-div\\"/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
+exports[`shadow_dom can mount app inside an element in a shadow root inside an iframe 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  
+  let block1 = createBlock(\`<div class=\\"my-div\\"/>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    return block1();
+  }
+}"
+`;
+
 exports[`shadow_dom useRef hook 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
@@ -29,6 +29,24 @@ describe("shadow_dom", () => {
    expect(status(comp)).toBe("destroyed");
  });

+  test("can mount app in closed shadow dom", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div class="my-div"/>`;
+    }
+
+    const container = document.createElement("div");
+    fixture.appendChild(container);
+    const shadow = container.attachShadow({ mode: "closed" });
+    const app = new App(SomeComponent);
+    const comp = await app.mount(shadow);
+    const div = shadow.querySelector(".my-div");
+    expect(div).not.toBe(null);
+    expect(shadow.contains(div)).toBe(true);
+    app.destroy();
+    expect(shadow.contains(div)).toBe(false);
+    expect(status(comp)).toBe("destroyed");
+  });
+
  test("can bind event handler", async () => {
    let a = 1;
    class SomeComponent extends Component {
@@ -64,4 +82,73 @@ describe("shadow_dom", () => {
    await mountedProm;
    expect(comp!.div.el).toBe(shadow.querySelector(".my-div"));
  });
+
+  test("can mount app inside a shadow child element", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div class="my-div"/>`;
+    }
+    const shadow = fixture.attachShadow({ mode: "open" });
+    const shadowDiv = document.createElement("div");
+    shadow.append(shadowDiv);
+    const app = new App(SomeComponent);
+    const comp = await app.mount(shadowDiv);
+    const div = shadow.querySelector(".my-div");
+    expect(div).not.toBe(null);
+    expect(shadow.contains(div)).toBe(true);
+    app.destroy();
+    expect(shadow.contains(div)).toBe(false);
+    expect(status(comp)).toBe("destroyed");
+  });
+
+  test("can mount app inside a separate HTML document", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div class="my-div"/>`;
+    }
+
+    const separateDoc = document.implementation.createHTMLDocument();
+    const container = separateDoc.createElement("div");
+    separateDoc.body.appendChild(container);
+
+    const app = new App(SomeComponent);
+    let error: Error;
+    try {
+      await app.mount(container);
+    } catch (e) {
+      error = e as Error;
+    }
+    expect(error!).toBeDefined();
+    expect(error!.message).toBe(
+      "Cannot mount a component: the target document is not attached to a window (defaultView is missing)"
+    );
+  });
+
+  test("can mount app inside an element in a shadow root inside an iframe", async () => {
+    class SomeComponent extends Component {
+      static template = xml`<div class="my-div"/>`;
+    }
+
+    const iframe = document.createElement("iframe");
+    fixture.appendChild(iframe);
+
+    const iframeDoc = iframe.contentDocument!;
+    const container = iframeDoc.createElement("div");
+    iframeDoc.body.appendChild(container);
+
+    const shadow = container.attachShadow({ mode: "open" });
+
+    const shadowTarget = iframeDoc.createElement("div");
+    shadow.appendChild(shadowTarget);
+
+    const app = new App(SomeComponent);
+    const comp = await app.mount(shadowTarget);
+
+    const div = shadow.querySelector(".my-div");
+    expect(div).not.toBe(null);
+    expect(shadow.contains(div)).toBe(true);
+    expect(iframeDoc.body.contains(container)).toBe(true);
+
+    app.destroy();
+    expect(shadow.contains(div)).toBe(false);
+    expect(status(comp)).toBe("destroyed");
+  });
 });
@@ -1,4 +1,4 @@
-import { batched, EventBus } from "../src/runtime/utils";
+import { batched, EventBus, htmlEscape, markup } from "../src/runtime/utils";
 import { nextMicroTick } from "./helpers";

 describe("event bus behaviour", () => {
@@ -71,3 +71,94 @@ describe("batched", () => {
    expect(n).toBe(2);
  });
 });
+
+const Markup = markup("").constructor;
+describe("markup", () => {
+  test("string is flagged as safe", () => {
+    const html = markup("<blink>Hello</blink>");
+    expect(html).toBeInstanceOf(Markup);
+  });
+  describe("htmlEscape", () => {
+    test("htmlEscape escapes text", () => {
+      const res = htmlEscape("<p>test</p>");
+      expect(res.toString()).toBe("&lt;p&gt;test&lt;/p&gt;");
+      expect(res).toBeInstanceOf(Markup);
+    });
+    test("htmlEscape keeps html markup", () => {
+      const res = htmlEscape(markup("<p>test</p>"));
+      expect(res.toString()).toBe("<p>test</p>");
+      expect(res).toBeInstanceOf(Markup);
+    });
+    test("htmlEscape produces empty string on undefined", () => {
+      const res = htmlEscape(undefined);
+      expect(res.toString()).toBe("");
+      expect(res).toBeInstanceOf(Markup);
+    });
+    test("htmlEscape produces string from number", () => {
+      const res = htmlEscape(10);
+      expect(res.toString()).toBe("10");
+      expect(res).toBeInstanceOf(Markup);
+    });
+    test("htmlEscape produces string from boolean", () => {
+      const res = htmlEscape(false);
+      expect(res.toString()).toBe("false");
+      expect(res).toBeInstanceOf(Markup);
+    });
+    test("htmlEscape correctly escapes various links", () => {
+      expect(htmlEscape("<a>this is a link</a>").toString()).toBe(
+        "&lt;a&gt;this is a link&lt;/a&gt;"
+      );
+      expect(htmlEscape(`<a href="https://www.odoo.com">odoo<a>`).toString()).toBe(
+        `&lt;a href=&quot;https://www.odoo.com&quot;&gt;odoo&lt;a&gt;`
+      );
+      expect(htmlEscape(`<a href='https://www.odoo.com'>odoo<a>`).toString()).toBe(
+        `&lt;a href=&#x27;https://www.odoo.com&#x27;&gt;odoo&lt;a&gt;`
+      );
+      expect(htmlEscape("<a href='https://www.odoo.com'>Odoo`s website<a>").toString()).toBe(
+        `&lt;a href=&#x27;https://www.odoo.com&#x27;&gt;Odoo&#x60;s website&lt;a&gt;`
+      );
+    });
+    test("htmlEscape doesn't escape already escaped content", () => {
+      const res = htmlEscape("<p>test</p>");
+      expect(res.toString()).toBe("&lt;p&gt;test&lt;/p&gt;");
+      expect(res).toBeInstanceOf(Markup);
+      const res2 = htmlEscape(res);
+      expect(res2.toString()).toBe("&lt;p&gt;test&lt;/p&gt;");
+      expect(res2).toBeInstanceOf(Markup);
+      expect(res2).toBe(res);
+    });
+    test("htmlEscape returns markup even for only-safe text", () => {
+      const res = htmlEscape("safe");
+      expect(res.toString()).toBe("safe");
+      expect(res).toBeInstanceOf(Markup);
+    });
+  });
+  describe("tag function", () => {
+    test("interpolated values are escaped", () => {
+      const maliciousInput = "<script>alert('💥💥')</script>";
+      const html = markup`<b>${maliciousInput}</b>`;
+      expect(html.toString()).toBe("<b>&lt;script&gt;alert(&#x27;💥💥&#x27;)&lt;/script&gt;</b>");
+      expect(html).toBeInstanceOf(Markup);
+    });
+    test("interpolated markups aren't escaped", () => {
+      const shouldBeEscaped = "<script>alert('should be escaped')</script>";
+      const shouldnt = markup("<b>this is safe</b>");
+      const html = markup`<div>${shouldBeEscaped} ${shouldnt}</div>`;
+      expect(html.toString()).toBe(
+        "<div>&lt;script&gt;alert(&#x27;should be escaped&#x27;)&lt;/script&gt; <b>this is safe</b></div>"
+      );
+      expect(html).toBeInstanceOf(Markup);
+    });
+    test("quotes in interpolated values are escaped", () => {
+      const imgUrl = `lol" onerror="alert('xss')`;
+      const html = markup`<img src="${imgUrl}">`;
+      expect(html.toString()).toBe(`<img src="lol&quot; onerror=&quot;alert(&#x27;xss&#x27;)">`);
+    });
+    test("already escaped content is not escaped again", () => {
+      const res = htmlEscape("<p>test</p>");
+      expect(res.toString()).toBe("&lt;p&gt;test&lt;/p&gt;");
+      const html = markup`${res}`;
+      expect(html.toString()).toBe("&lt;p&gt;test&lt;/p&gt;");
+    });
+  });
+});
Author	SHA1	Message	Date
Lucas Perais (lpe)	fb7d25ba0e	[FIX] error_handling: onError works if handling happens between culprit and root Have a component implementing onError that calls a callback from one of its parent. That parent should not be the original source of the rendering (a parent above is). Make the callback handle the error and trigger an render() Before this commit, the parent did not see it was handling a subtree in error, and did not have a chance to revert that error state in its rendering stack. After this commit, this flow works.	2025-10-02 12:46:55 +02:00
Romeo Fragomeli	5187f01c44	[REL] v2.8.1 # v2.8.1 - [FIX] parser, code_generator: wrapped children recognition - [DOC] `slots` prop validation	2025-09-23 09:17:54 +02:00
Mathieu Duckerts-Antoine	521111644c	[FIX] parser, code_generator: wrapped children recognition Several directives (t-key, t-log, t-translation, …) are represented by wrapper ASTs that contain another AST or null. Because these wrappers don't share the same type as their children, various AST type checks were broken. This commit addresses those issues by: - Commuting Translation / TranslationContext and Multi ASTs so that Multi children are spread as expected (see parseChildren). - Parsing the t-key directive before t-esc / t-out (in line with https://github.com/odoo/owl/pull/1685). - Ensuring wrappers around TSet ASTs are recognized as having no representation, so compileMulti properly discards children equivalent to TSet.	2025-09-22 16:59:47 +02:00
Damien Bouvy	c2728c9daf	[DOC] `slots` prop validation Make it explicit that props validation should accept `slots` if a component uses slots (even the `default` slot).	2025-09-03 13:46:45 +02:00
Romeo Fragomeli	871dad6a13	[REL] v2.8.0 # v2.8.0 - [FIX] parser: t-esc/t-out vs t-translation* - [IMP] compiler: make human-readable ARIA attributes translatable	2025-06-30 14:46:16 +02:00
Mathieu Duckerts-Antoine	b620502a0f	[FIX] parser: t-esc/t-out vs t-translation* The directives t-esc/t-out both discard the ASTs that are not of DomNode type. Since the directives t-translation and t-translation-context both creates AST wrappers of type TTranslation and TTranslationContext respectively, mix t-esc/t-out and t-translation/t-translation-context does not work. For example parse <span t-esc="'Hello'" t-translation="off"/> gives the AST { type: ASTType.TEsc, expr: "'Hello'", defaultValue: "", } This makes the span not been rendered in the end. We fix that problem.	2025-06-24 16:03:56 +02:00
Louis Wicket (wil)	89cb00cc83	[IMP] compiler: make human-readable ARIA attributes translatable ARIA attributes containing human-readable text should be translated. This commit adds human-readable ARIA attributes to the list of the attributes translated by OWL.	2025-04-03 21:40:27 +02:00
Romeo Fragomeli	56041bc133	[REL] v2.7.0 # v2.7.0 - [IMP] runtime/utils: export htmlEscape and add tests - [FIX] utils: Correct validation of mount target in shadow DOM/iframe - [IMP] runtime: add markup tag function	2025-03-26 13:58:50 +01:00
Sébastien Theys	e788e361c7	[IMP] runtime/utils: export htmlEscape and add tests markup tag function requires markup awareness to determine whether a given parameter should be escaped or not. This implies that pre-escaped content should be properly marked'ed up to avoid double escaping. Having to manually wrap all calls to escape with markup is cumbersome and prone to issues (on top of having to be validated by the security team for no reason). This commit introduces a markup-aware escape function to resolve those issues.	2025-03-26 13:52:35 +01:00
Achraf (abz)	9d378b0e7b	[FIX] utils: Correct validation of mount target in shadow DOM/iframe Previously, `validateTarget` only checked if the target element or its host (if it was a ShadowRoot) was directly contained in the document body. This failed in cases where the target element was nested inside a shadow DOM, which itself was attached to the document. This commit introduces a new helper `isAttachedToDocument` that traverses through parent nodes and shadow roots to ensure that the target is ultimately attached to the given document. Additionally, it now throws a clear error if `document.defaultView` is missing, indicating that the target document is detached or invalid. This ensures proper validation of mount targets, including complex scenarios with shadow roots and iframes.	2025-03-25 21:11:39 +01:00
Louis Wicket (wil)	fd3c194525	[IMP] runtime: add markup tag function Allows markup to be called as a tag function. The interpolated strings are then safely escaped for injection in HTML code. Example usage: ```js const maliciousInput = "<script>alert('💥💥')</script>"; const value = markup`<b>${maliciousInput}</b>`; // no problem, maliciousInput is properly escaped ```	2025-03-25 15:39:26 +01:00
Romeo Fragomeli	ac9ccb81ca	[REL] v2.6.1 # v2.6.1 - [FIX] code generator: prevent AST change - [IMP] runtime: simplify info message when running in dev mode	2025-03-05 09:38:08 +01:00
Michaël Mattiello	2b5cea944b	[FIX] code generator: prevent AST change This commit removes an AST change during the code generation of slots. Before, the `compileTSlot` function deleted the `t-props` attribute directly on `ast.attrs`. This creates wrong code when compiling a second time as the `t-props` attribute does not exist anymore.	2025-03-05 09:27:43 +01:00
Géry Debongnie	cf8039f643	[IMP] runtime: simplify info message when running in dev mode The owl dev info message may be useful, but does not bring that much value. Also, this is even slightly annoying while debugging odoo, since it is common to have to go to dev mode, and the message takes some visual space, which is a distraction. In this commit, we simplify it to just warn that owl is in dev mode.	2025-01-16 15:55:11 +01:00
Romeo Fragomeli	aec2373e6d	[REL] v2.6.0 # v2.6.0 - [IMP] translation contexts	2025-01-15 11:40:33 +01:00
Mathieu Duckerts-Antoine	a9be149e1e	[IMP] translation contexts A new directive t-tanslation-context and a new family of directives (of the form t-translation-context-...) are introduced to allow to translate terms in contexts. Set t-translation-context="fr" on a node makes every call of the translation function to be done with "fr" as seconde parameter when translating an attribute/content within that node or its children (if no closer t-translation-context directive is found). A directive t-translation-context-attr="fr" can be used on a node to target its attribute "attr". For example, if a div has an attribute title="a title", use t-translation-context-title="pt" will make "a title" to be translated in the context "pt". Note that this takes precedence over any other directive t-translation-context found on a parent (or the div itself). The translation function is in charge of the interpretation of the context: OWL does not associate any meaning with a translation context.	2025-01-15 11:01:53 +01:00