27 lines
954 B
HTML
27 lines
954 B
HTML
<!DOCTYPE html>
|
|
<html class="reftest-wait">
|
|
<head>
|
|
<title>Test for bug 1646601</title>
|
|
<script>
|
|
document.addEventListener('DOMContentLoaded', async () => {
|
|
const frame = document.createElement('iframe');
|
|
document.body.appendChild(frame);
|
|
frame.srcdoc = '<html></html>';
|
|
await new Promise(resolve => frame.onload = resolve);
|
|
const subwin = frame.contentWindow;
|
|
const subcontext = subwin.AudioContext;
|
|
// Construct an AudioContext while the subdocument is fully active to start
|
|
// a MediaTrackGraph.
|
|
new subcontext();
|
|
// Unload the subdocument and wait for completion.
|
|
// This shuts down the MediaTrackGraph.
|
|
subwin.location.reload();
|
|
await new Promise(resolve => frame.onload = resolve);
|
|
// Test that a new AudioContext on the inactive subdocument does not attempt
|
|
// to use the shut-down MediaTrackGraph.
|
|
try { new subcontext() } catch {}
|
|
document.documentElement.removeAttribute('class');
|
|
});
|
|
</script>
|
|
</head>
|
|
</html>
|