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Test Info: Warnings
- This test has a WPT meta file that expects 2 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /wasm/serialization/memory/window-sharedworker-failure.tentative.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Shared WebAssembly.Memory cannot cross agent clusters: shared worker edition</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
"use strict";
test(() => {
assert_true(self.crossOriginIsolated, "test page is cross-origin isolated");
}, "precondition: window is cross-origin isolated");
function assertSharedWorkerIsolated(data) {
assert_equals(data.kind, "ready", "first message is the ready signal");
assert_true(data.crossOriginIsolated,
"SharedWorker reports crossOriginIsolated; otherwise the headers are not being honored");
}
async_test(t => {
const sw = new SharedWorker("resources/sharedworker-receive-memory.js");
let ready = false;
sw.port.onmessage = t.step_func(e => {
if (!ready) {
assertSharedWorkerIsolated(e.data);
ready = true;
try {
sw.port.postMessage(new WebAssembly.Memory({ shared: true, initial: 1, maximum: 1 }));
} catch (err) {
assert_unreached("Window-side postMessage threw synchronously: " + err);
}
} else if (e.data && e.data.kind === "got-messageerror") {
t.done();
} else {
assert_unreached("SharedWorker reported: " + JSON.stringify(e.data));
}
});
sw.port.onmessageerror = t.unreached_func("messageerror on the window-side port");
}, "Shared WebAssembly.Memory from window to SharedWorker fires messageerror on the SharedWorker");
async_test(t => {
const sw = new SharedWorker("resources/sharedworker-send-memory.js");
let ready = false;
sw.port.onmessage = t.step_func(e => {
if (!ready) {
assertSharedWorkerIsolated(e.data);
ready = true;
sw.port.postMessage("send-me-memory");
} else if (e.data && e.data.kind === "threw") {
assert_unreached("SharedWorker postMessage threw synchronously: " + e.data.message);
} else {
assert_unreached("Window received unexpected message: " + JSON.stringify(e.data));
}
});
sw.port.onmessageerror = t.step_func(() => {
assert_true(ready, "messageerror should fire only after ready");
t.done();
});
}, "Shared WebAssembly.Memory from SharedWorker to window fires messageerror on the window");
</script>