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<!--
Any copyright is dedicated to the Public Domain.
-->
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>RemoteWorkerDebugger freeze/sync-loop frame</title>
</head>
<body>
<script type="text/javascript">
"use strict";
// Owner page for the shared worker. Relays worker port messages to the
// test over a BroadcastChannel and navigates itself into/out of bfcache
// on command, which freezes/thaws the shared worker.
// The token isolates this run from other runs of the test that share the
// same browser (test-verify / chaos mode). It scopes the SharedWorker and
// the BroadcastChannel names, and is carried on to the nav page.
const token = new URLSearchParams(location.search).get("token");
const bc = SpecialPowers.wrap(BroadcastChannel).unpartitionedTestingChannel(
"remoteDebugger_freeze_syncloop_" + token
);
const worker = new SharedWorker(
"remoteDebugger_freeze_syncloop_worker.js",
"remoteDebugger_freeze_syncloop_" + token
);
worker.port.onmessage = event => {
bc.postMessage({ from: "worker", data: event.data });
};
worker.port.start();
bc.onmessage = event => {
const command = event.data.command;
if (command == "start") {
worker.port.postMessage("start");
} else if (command == "freeze") {
// Navigate away so this page enters bfcache and the shared worker is
// frozen while it is parked in its synchronous XHR.
window.location =
"remoteDebugger_freeze_syncloop_nav.html?token=" + encodeURIComponent(token);
}
};
window.onpageshow = event => {
bc.postMessage({ from: "frame", event: "pageshow", persisted: event.persisted });
};
</script>
</body>
</html>