| n<!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Test that <object> renders its own fallback.</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| // The host exists but the resource is unavailable. |
| const cross_origin_url_a = "http://{{hosts[alt][www]}}:{{ports[http][0]}}/foo.html"; |
| // The destination does not even exist and the navigation fails. |
| const cross_origin_url_b = "http://{{hosts[alt][nonexistent]}}:{{ports[http][0]}}/foo.html"; |
| |
| // Returns a promise which is resolved when |callback| returns true. The |callback| is invoked at |
| // every animation frame. |
| function for_each_animation_frame(callback) { |
| return new Promise((resolve) => { |
| function on_raf() { |
| if (!callback()) |
| resolve(); |
| window.requestAnimationFrame(on_raf); |
| } |
| window.requestAnimationFrame(on_raf); |
| }); |
| } |
| |
| // Create an <object> with some fallback content. |
| function create_object_with_fallback(url) { |
| var object = document.createElement("object"); |
| var fallback = document.createElement("button"); |
| fallback.textContent = "FALLBACK CONTENT"; |
| object.appendChild(fallback); |
| object.data = url; |
| object.type = "text/html"; |
| document.body.appendChild(object); |
| return object; |
| } |
| |
| function area(el) { |
| let bounds = el.getBoundingClientRect(); |
| return el.width * el.height; |
| } |
| |
| promise_test(async() => { |
| var object = create_object_with_fallback(cross_origin_url_a); |
| await for_each_animation_frame(() => area(object.firstChild) > 0); |
| object.parentElement.removeChild(object); |
| object = create_object_with_fallback(cross_origin_url_b); |
| await for_each_animation_frame(() => area(object.firstChild) > 0); |
| object.parentElement.removeChild(object); |
| }, "Verify fallback content for failed cross-origin navigations is shown correctly."); |
| </script> |
| </body> |
