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<!DOCTYPE html>
<title>Handling of unsupported attribute</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
setup({allow_uncaught_exception: true});
window.log = [];
window.addEventListener("error", ev => log.push(ev.error));
const test_load = async_test(
"Test that invalid module attribute leads to SyntaxError on window.");
window.addEventListener("load", test_load.step_func_done(ev => {
assert_equals(log.length, 1);
assert_equals(log[0].constructor, SyntaxError);
}));
function unreachable() { log.push("unexpected"); }
</script>
<script type="module" src="./unsupported-attribute.js" onerror="unreachable()"></script>
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