39 lines
1.6 KiB
HTML
39 lines
1.6 KiB
HTML
<!DOCTYPE html>
|
|
<meta charset="utf-8">
|
|
<title>Making the current page become non-active must prevent message transmission</title>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
|
|
<!-- This is the entry global -->
|
|
|
|
<iframe src="support/incumbent.html" id="incumbent"></iframe>
|
|
<iframe src="support/current.html" id="current"></iframe>
|
|
|
|
<script>
|
|
"use strict";
|
|
const incumbentIframe = document.querySelector("#incumbent");
|
|
const currentIframe = document.querySelector("#current");
|
|
|
|
window.addEventListener("load", () => {
|
|
promise_test(async t => {
|
|
// This will invoke the constructor from currentIframe, but with incumbentIframe as the incumbent.
|
|
const messageChannel = incumbentIframe.contentWindow.createMessageChannel();
|
|
|
|
await new Promise((resolve, reject) => {
|
|
currentIframe.onload = () => resolve();
|
|
currentIframe.onerror = () => reject(new Error("Could not navigate the iframe"));
|
|
currentIframe.src = "/common/blank.html";
|
|
});
|
|
|
|
messageChannel.port1.onmessage = t.unreached_func("message event recieved");
|
|
messageChannel.port1.onmessageerror = t.unreached_func("messageerror event recieved");
|
|
messageChannel.port2.postMessage("boo");
|
|
|
|
// We are testing that neither of the above two events fire. We assume that a 3 second timeout
|
|
// is good enough. We can't use any other API for an end condition because each MessagePort has
|
|
// its own independent port message queue, which has no ordering guarantees relative to other
|
|
// APIs.
|
|
await new Promise(resolve => t.step_timeout(resolve, 3000));
|
|
});
|
|
});
|
|
</script>
|