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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-layout-api/fallback-layout/constructor-error.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class=reftest-wait>
<link rel="match" href="fallback-layout-fallback-ref.html">
<meta name="assert" content="This test checks that a layout() class with a throwing constructor will fallback to block layout." />
<style>
.test {
background: red;
border: solid 2px;
width: 100px;
}
.float {
float: left;
width: 50%;
height: 100px;
}
.fc {
display: flow-root;
height: 100px;
}
@supports (display: layout(throwing-ctor)) {
.test {
display: layout(throwing-ctor);
background: green;
}
}
</style>
<script src="/common/reftest-wait.js"></script>
<script src="/common/worklet-reftest.js"></script>
<!-- This tests that when the "layout()" constructor fails, it will fallback to block layout. -->
<div class="test">
<div class="float"></div>
<div class="fc"></div>
</div>
<script id="code" type="text/worklet">
registerLayout('throwing-ctor', class {
constructor() { throw Error('fail!'); }
async intrinsicSizes() {}
async layout() {}
});
</script>
<script>
importWorkletAndTerminateTestAfterAsyncPaint(CSS.layoutWorklet, document.getElementById('code').textContent);
</script>
</html>