diff options
Diffstat (limited to 'testing/web-platform/tests/html/semantics/embedded-content/the-img-element/srcset/avoid-reload-on-resize.html')
| -rw-r--r-- | testing/web-platform/tests/html/semantics/embedded-content/the-img-element/srcset/avoid-reload-on-resize.html | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/srcset/avoid-reload-on-resize.html b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/srcset/avoid-reload-on-resize.html new file mode 100644 index 0000000000..52366dcaa7 --- /dev/null +++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/srcset/avoid-reload-on-resize.html @@ -0,0 +1,20 @@ +<!doctype html> +<title>Avoid srcset image reloads when viewport resizes</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +setup({single_test:true}); +const image_was_loaded = () => { + const iframe = document.getElementById("iframe"); + // Resize the iframe + iframe.width="400"; + // Wait 500 ms + step_timeout(() => { + // Check that the iframe only loaded a single resource + const entries = iframe.contentWindow.performance.getEntriesByType("resource"); + assert_equals(entries.length, 1); + done(); + }, 500); +} +</script> +<iframe id=iframe width="401" src="resources/resized.html" onload="image_was_loaded()"></iframe> |