зеркало из https://github.com/mozilla/gecko-dev.git
56 строки
1.3 KiB
HTML
56 строки
1.3 KiB
HTML
<!DOCTYPE html>
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<title>MessagePort should not work when created from a disconnected window</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<body>
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<script>
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"use strict";
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SimpleTest.waitForExplicitFinish();
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runTest();
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async function runTest() {
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let ifr = document.createElement('iframe');
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await new Promise(resolve => {
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ifr.onload = resolve;
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ifr.src = 'support/empty.html';
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document.body.appendChild(ifr);
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});
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let w = ifr.contentWindow;
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let pre = new w.MessageChannel();
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ok(!!pre, "We have a channel");
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ifr.remove();
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let post = new w.MessageChannel();
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ok(!!post, "We have a channel");
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// This should silently fail.
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pre.port1.postMessage(42);
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pre.port2.onmessage = e => {
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ok(false, "No messages should be received!");
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}
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// This should silently fail.
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post.port1.postMessage(42);
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post.port2.onmessage = e => {
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ok(false, "No messages should be received!");
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}
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// Let's use another MessagePort just to be sure no messages are received by
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// port2.
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let mc = new MessageChannel();
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mc.port1.postMessage(42);
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mc.port2.onmessage = e => {
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ok(true, "Ready to complete the test");
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SimpleTest.finish();
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}
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}
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</script>
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</body>
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