v8/test/mjsunit/regress/wasm/regress-801850.js

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

load('test/mjsunit/wasm/wasm-module-builder.js');

var builder = new WasmModuleBuilder();
let module = new WebAssembly.Module(builder.toBuffer());
var worker = new Worker('onmessage = function() {};', {type: 'string'});
worker.postMessage(module)