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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /workers/dedicated-worker-runtime-error-is-not-parse-error.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>DedicatedWorker: runtime errors are not parse errors</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
promise_test(async () => {
const worker = new Worker('support/eval-syntax-error.js');
const event = await new Promise(resolve => {
worker.onerror = e => { e.preventDefault(); resolve(e); };
});
assert_true(event instanceof ErrorEvent,
'eval() syntax error should dispatch ErrorEvent, not Event');
}, 'eval() with syntax error dispatches ErrorEvent at Worker');
promise_test(async () => {
const worker = new Worker('support/json-parse-error.js');
const event = await new Promise(resolve => {
worker.onerror = e => { e.preventDefault(); resolve(e); };
});
assert_true(event instanceof ErrorEvent,
'JSON.parse() error should dispatch ErrorEvent, not Event');
}, 'JSON.parse() error dispatches ErrorEvent at Worker');
promise_test(async () => {
const worker = new Worker('modules/resources/syntax-error.js', { type: 'classic' });
const event = await new Promise(resolve => {
worker.onerror = e => { e.preventDefault(); resolve(e); };
});
assert_equals(event.constructor, Event,
'Script parse error should dispatch Event, not ErrorEvent');
assert_false(event instanceof ErrorEvent,
'Script parse error should not be an ErrorEvent');
}, 'Script parse error dispatches plain Event at Worker');
</script>