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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/window-iframe-messagechannel.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Structured cloning of SharedArrayBuffers into windows using MessageChannel</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-incrementer.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<div id="log"></div>
<script>
promise_test(t => {
return new Promise(resolve => {
const iframe = document.createElement("iframe");
window.onmessage = t.step_func((message) => {
// data will be a MessagePort
resolve(testSharingViaIncrementerScript(t, message.data, "window", message.data, "iframe"));
});
iframe.src = "resources/incrementer-iframe-messagechannel.html";
document.body.appendChild(iframe);
});
}, `postMessaging to a same-origin iframe via MessageChannel allows them to see each others' modifications`);
promise_test(t => {
return new Promise(resolve => {
const iframe = document.createElement("iframe");
window.onmessage = t.step_func((message) => {
// data will be a MessagePort
message.data.postMessage(new SharedArrayBuffer(10));
message.data.onmessage = t.step_func(message => {
assert_equals(message.data, "messageerror event received");
resolve();
});
});
iframe.src = get_host_info().HTTPS_REMOTE_ORIGIN + new URL("resources/iframe-messagechannel-site-failure.html", window.location).pathname;
document.body.appendChild(iframe);
});
}, "postMessaging to a same-site iframe via MessageChannel should fail");
promise_test(t => {
return new Promise(resolve => {
const iframe = document.createElement("iframe");
window.onmessage = t.step_func(message => {
// data will be a MessagePort
message.data.postMessage(new SharedArrayBuffer(10));
message.data.onmessage = t.step_func(message => {
assert_equals(message.data, "messageerror event received");
resolve();
});
});
iframe.src = get_host_info().HTTPS_NOTSAMESITE_ORIGIN + new URL("resources/iframe-messagechannel-failure.html", window.location).pathname;
document.body.append(iframe);
});
}, "postMessaging to a cross-site iframe via MessageChannel should fail");
promise_test(t => {
return new Promise(resolve => {
const iframe = document.createElement("iframe");
let port = null;
window.onmessage = t.step_func(message => {
if (message.data.state === "port1") {
port = message.data.data;
port.postMessage(new SharedArrayBuffer(10));
message.source.postMessage("send port2", "*");
} else if (message.data.state === "port2") {
// Note that onmessage calls start()
message.data.data.onmessage = t.step_func(message => {
assert_true(message.data instanceof SharedArrayBuffer);
assert_equals(message.data.byteLength, 10);
resolve();
});
message.data.data.onmessageerror = t.unreached_func();
}
});
iframe.src = get_host_info().HTTPS_NOTSAMESITE_ORIGIN + new URL("resources/iframe-messagechannel-complex.html", window.location).pathname;
document.body.append(iframe);
});
}, "postMessaging with a MessageChannel that's been cross-site should succeed");
</script>