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<!DOCTYPE html>
<title>Scrolling a lazy loaded image into view in an iframe</title>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<iframe onload="async_test(this.contentWindow.run)" srcdoc="
<!DOCTYPE html>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='../resources/common.js'></script>
<h1>Scroll down...</h1>
<p>Scroll down...</p>
<p>Scroll down...</p>
<img id='below_iframe_viewport_img' src='resources/image.png' loading='lazy'
onload='below_iframe_viewport_img.resolve();' onerror='below_iframe_viewport_img.reject();'>
<script>
const scroll_trigger_img = new ElementLoadPromise('visible');
const below_iframe_viewport_img = new ElementLoadPromise('below_iframe_viewport_img');
function run(t) {
below_iframe_viewport_img.element().scrollIntoView();
below_iframe_viewport_img.promise
.then(t.step_func(() => {
assert_not_equals(below_iframe_viewport_img.element().width, 0, 'width should be greater than zero after scrolling');
assert_not_equals(below_iframe_viewport_img.element().height, 0, 'height should be greater than zero after scrolling');
t.done();
}))
.catch(t.unreached_func('The below_iframe_viewport image should load'));
};
</script>
"></iframe>
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