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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /wasm/serialization/memory/window-nested-dedicated-worker-failure.tentative.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Shared WebAssembly.Memory cannot cross agent clusters: dedicated worker spawned by SharedWorker</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
"use strict";
async_test(t => {
const sw = new SharedWorker("resources/sharedworker-spawn-dedicated.js");
const { port1, port2 } = new MessageChannel();
// Hand port2 to the SharedWorker, which forwards it to a dedicated worker
// it spawns in its own agent cluster.
sw.port.postMessage(null, [port2]);
sw.port.onmessage = t.step_func(e => {
switch (e.data) {
case "ready": {
const memory = new WebAssembly.Memory({ shared: true, initial: 1, maximum: 1 });
port1.postMessage(memory);
break;
}
case "got-messageerror": {
t.done();
break;
}
default: {
assert_unreached("Unexpected message from SharedWorker: " + e.data);
}
}
});
sw.port.onmessageerror = t.unreached_func("messageerror on SharedWorker port");
port1.onmessageerror = t.unreached_func("messageerror on the window-side port");
}, "Shared WebAssembly.Memory sent to a dedicated worker in a SharedWorker's agent cluster fires messageerror");
</script>