chromium/src/third_party/blink/web_tests/external/wpt/wasm/serialization/module/resources/create-empty-wasm-module.js

function createEmptyWasmModule() {
  return new WebAssembly.Module(
      new Uint8Array([0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]));
}