File: SharedWorker-detach-frame-in-error-event.html

package info (click to toggle)
thunderbird 1%3A128.14.0esr-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 4,334,824 kB
  • sloc: cpp: 7,391,917; javascript: 5,617,271; ansic: 3,833,216; python: 1,230,742; xml: 619,690; asm: 456,022; java: 179,892; sh: 118,796; makefile: 21,908; perl: 14,825; objc: 12,399; yacc: 4,583; pascal: 2,973; lex: 1,720; ruby: 1,190; exp: 762; sql: 674; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (28 lines) | stat: -rw-r--r-- 870 bytes parent folder | download | duplicates (29) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
<!DOCTYPE html>
<title>Test frame detach in shared worker's error handler</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<iframe id="frame"></iframe>
</body>
<script>
promise_test(t => {
  const frame = document.getElementById('frame');

  const promise = new Promise(resolve => {
    window.detachFrame = () => {
      frame.remove();
      resolve();
    };
  });

  // Start a new worker with an invalid script in the frame, and detach the
  // frame in the worker's error handler. This shouldn't crash.
  const s = frame.contentWindow.document.createElement('script');
  s.innerHTML = "const worker = new SharedWorker('error');" +
                "worker.onerror = () => { window.parent.detachFrame(); };";
  frame.contentWindow.document.body.appendChild(s);

  return promise;
});
</script>