Bug 1728209 [wpt PR 30239] - [wasm] Deprecate cross-origin module sharing, a=testonly

Automatic update from web-platform-tests [wasm] Deprecate cross-origin module sharing With this CL cross-origin module sharing gets disabled by default. It can be re-enabled by setting the command line switch `cross-origin-webassembly-module-sharing-allowed`, by setting the enterprise policy `CrossOriginWebAssemblyModuleSharingEnabled`, or by --enable-features=CrossOriginWebAssemblyModuleSharingEnabled. Bug: chromium:1225641 Change-Id: I950f2121856a8c185df93e27c476ec90faf3f136 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3094205 Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org> Reviewed-by: Jeremy Roman <jbroman@chromium.org> Reviewed-by: Koji Ishii <kojii@chromium.org> Reviewed-by: Anqing Zhao <anqing@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/main@{#917573} -- wpt-commits: cd381d102622e91faf515ab77f8ca0376fbaf311 wpt-pr: 30239
2021-09-03 04:10:05 +00:00 · 2021-09-03 04:10:05 +00:00 · 4a525584aa
--- a/testing/web-platform/tests/wasm/serialization/module/resources/incrementer-iframe-failure.html
+++ b/testing/web-platform/tests/wasm/serialization/module/resources/incrementer-iframe-failure.html
@ -0,0 +1,5 @@
+<title>A test page that is sent a WebAssembly Module cross-origin cannot receive it</title>
+
+<script>
+self.onmessageerror = () => parent.postMessage('messageerror received', "*");
+</script>
--- a/testing/web-platform/tests/wasm/serialization/module/share-module-cross-origin-fails.sub.html
+++ b/testing/web-platform/tests/wasm/serialization/module/share-module-cross-origin-fails.sub.html
@ -0,0 +1,31 @@
+<title>Postmessage of a WebAssembly.Module cross-origin fails with a messageerror</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="./resources/test-incrementer.js"></script>
+
+<body></body>
+
+<script>
+promise_test(async t => {
+  // Create an iframe. It will notify this document when the "messageerror"
+  // event is triggered.
+  const iframe = document.createElement("iframe");
+  iframe.src = "//{{domains[www1]}}:{{location[port]}}" +
+    "/wasm/serialization/module/resources/incrementer-iframe-failure.html";
+
+  // Instantiate and wait for the document to be loaded.
+  const iframeLoaded = new Promise(resolve => iframe.onload = resolve);
+  document.body.appendChild(iframe);
+  await iframeLoaded;
+
+  const module = await createWasmModule();
+  const messageErrorReceived = new Promise(resolve => {
+    window.onmessage = ({data}) => {
+      if (data == 'messageerror received')
+        resolve();
+    };
+  });
+  iframe.contentWindow.postMessage({message: 'send module', module}, "*");
+  await messageErrorReceived;
+}, "postMessaging a wasm module to a cross-origin iframe fails");
+</script>