diff options
Diffstat (limited to 'layout/generic/test/test_reframe_for_lazy_load_image.html')
| -rw-r--r-- | layout/generic/test/test_reframe_for_lazy_load_image.html | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/layout/generic/test/test_reframe_for_lazy_load_image.html b/layout/generic/test/test_reframe_for_lazy_load_image.html new file mode 100644 index 0000000000..28c938101c --- /dev/null +++ b/layout/generic/test/test_reframe_for_lazy_load_image.html @@ -0,0 +1,28 @@ +<!doctype html> +<meta charset=utf-8> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +<div id='log'></div> +<script> +'use strict'; +SimpleTest.waitForExplicitFinish(); +SpecialPowers.pushPrefEnv( + // Open a new document with enabling lazy load since we need to create an + // image element with loading="lazy" and alt="something" in the first place. + // That's because if the element has `alt` but doesn't have `lazy` we will + // generate inline frames due to the `alt`. Also if we do add the `lazy` and + // the `alt` dynamically, it ends up generating reconstruct change hint for + // the `alt` change. + { + set: [ + ["dom.image-lazy-loading.enabled", true], + ["dom.image-lazy-loading.root-margin.top", 0], + ["dom.image-lazy-loading.root-margin.bottom", 0], + ["dom.image-lazy-loading.root-margin.left", 0], + ["dom.image-lazy-loading.root-margin.right", 0], + ] + }, + () => { window.open('file_reframe_for_lazy_load_image.html'); } +); +</script> +</html> |