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<!DOCTYPE html>
<title>Handling of different types of errors</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));
window.addEventListener("onunhandledrejection", unreachable);
const test_load = async_test(
"parse error has higher priority than instantiation error");
window.addEventListener("load", test_load.step_func_done(ev => {
assert_equals(log.length, 4);
// An instantiation error is reported for the first top-level
// <script> element for instantiation-error-1.js.
assert_equals(log[0].constructor, SyntaxError);
assert_equals(log[1], 1);
// A parse error is reported for the second top-level <script>.
assert_equals(log[2].constructor, SyntaxError);
assert_equals(log[3], 2);
assert_not_equals(log[0], log[2]);
}));
function unreachable() { log.push("unexpected"); }
</script>
<script type="module" src="./instantiation-error-1.js"
onerror="unreachable()" onload="log.push(1)"></script>
<script type="module" src="./error-type-2.js"
onerror="unreachable()" onload="log.push(2)"></script>
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