no-transferring.html

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This WPT test may be referenced by the following Test IDs:
- /wasm/serialization/module/no-transferring.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- Based on similar tests in html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/ -->

<meta charset="utf-8">

<title>WebAssembly.Modules cannot be transferred</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="./resources/create-empty-wasm-module.js"></script>

<script>

"use strict";

test(() => {

  const module = createEmptyWasmModule();

  assert_throws_dom("DataCloneError", () => window.postMessage(module, "*", [module]));

  assert_throws_dom("DataCloneError", () => window.postMessage("test", "*", [module]));

}, "Trying to transfer a WebAssembly.Module to this window throws");

test(() => {

  const module = createEmptyWasmModule();

  const worker = new Worker("resources/echo-worker.js");

  assert_throws_dom("DataCloneError", () => worker.postMessage(module, [module]));

  assert_throws_dom("DataCloneError", () => worker.postMessage("test", [module]));

}, "Trying to transfer a WebAssembly.Module to a worker throws");

test(() => {

  const module = createEmptyWasmModule();

  const channel = new MessageChannel();

  assert_throws_dom("DataCloneError", () => channel.port1.postMessage(module, [module]));

  assert_throws_dom("DataCloneError", () => channel.port1.postMessage("test", [module]));

}, "Trying to transfer a WebAssembly.Module through a MessagePort throws");

</script>