checkpoint-after-window-onerror.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/scripting-1/the-script-element/microtasks/checkpoint-after-window-onerror.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<head>

  <meta charset="utf-8">

  <title>Microtask checkpoint after window.onerror events (classic)</title>

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <script src="resources/checkpoint-after-error-event.js"></script>

  <script>self.postMessage("foo");</script>

</head>