45 lines
1.8 KiB
HTML
45 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>The current page being cross-origin must prevent the BroadcastChannel message from being seen</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<!-- This is the entry global -->
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<iframe src="support/incumbent-document-domain.sub.html" id="incumbent"></iframe>
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<iframe src="http://{{hosts[][www]}}:{{ports[http][0]}}/webmessaging/multi-globals/support/current-document-domain.sub.html" id="current"></iframe>
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<script>
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"use strict";
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document.domain = "{{hosts[][]}}";
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setup({ explicit_done: true });
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const incumbentIframe = document.querySelector("#incumbent");
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const currentIframe = document.querySelector("#current");
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window.onload = () => {
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promise_test(async t => {
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const createdCrossOrigin = frames[0].createBroadcastChannel("current");
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const createdSameOrigin = new BroadcastChannel("current");
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createdSameOrigin.onmessage = t.unreached_func("message event fired");
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createdSameOrigin.onmessageerror = t.unreached_func("messageerror event fired");
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createdCrossOrigin.postMessage("the message");
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// BroadcastChannel messages are guaranteed to be ordered within an event loop, as they all use
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// the DOM manipulation task source. So, any messages from the "current" channel, if they are
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// going to be erroneously delivered, would have to be delivered before those from this
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// channel. I.e., if we recieve a message from this channel without first recieving one from
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// the "current" channel, then the test passes.
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const testEnder = new BroadcastChannel("current / test-ender");
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const testEnder2 = new BroadcastChannel("current / test-ender");
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testEnder.postMessage("end test");
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await new Promise(resolve => testEnder2.onmessage = resolve);
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});
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done();
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};
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</script>
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