[FIX] router: do not prevent default click on <a> in some cases

tests/router/Link.test.ts

@@ -45,11 +45,40 @@ describe("Link component", () => {
     expect(window.location.pathname).toBe("/users");
     fixture.querySelector("a")!.click();
     await nextTick();
+    expect(window.location.pathname).toBe("/about");
     expect(fixture.innerHTML).toBe(
       '<div><a href="/about" class="router-link-active">About</a></div>'
     );
 
-    expect(window.location.pathname).toBe("/about");
     expect(env.qweb.templates[LINK_TEMPLATE_NAME].fn.toString()).toMatchSnapshot();
   });
+
+  test("do not redirect if right clicking", async () => {
+    env.qweb.addTemplates(`
+        <templates>
+            <div t-name="App">
+                <Link to="'about'">About</Link>
+            </div>
+        </templates>
+    `);
+    class App extends Component<any, any, any> {
+      components = { Link: Link };
+    }
+
+    const routes = [{ name: "about", path: "/about" }, { name: "users", path: "/users" }];
+
+    router = new TestRouter(env, routes, { mode: "history" });
+    router.navigate({ to: "users" });
+    const app = new App(env);
+    await app.mount(fixture);
+
+    expect(window.location.pathname).toBe("/users");
+    var evt = new MouseEvent("click", {
+      button: 1
+    });
+
+    fixture.querySelector("a")!.dispatchEvent(evt);
+    await nextTick();
+    expect(window.location.pathname).toBe("/users");
+  });
 });