| async_test(t => { |
| const img = new Image(); |
| t.add_cleanup(() => img.remove()); |
| img.onloadstart = img.onprogress = img.onloadend = t.unreached_func("progress event fired"); |
| img.onload = t.step_func_done(e => { |
| assert_true(e instanceof Event); |
| assert_false(e instanceof ProgressEvent); |
| }); |
| img.src = "/images/rrgg-256x256.png"; |
| document.body.append(img); |
| }, "<img> does not support ProgressEvent or loadstart/progress/loadend"); |
| |
| test(t => { |
| assert_equals(document.body.onloadend, undefined); |
| assert_equals(window.onloadend, undefined); |
| }, "onloadend is not exposed"); |