denoland-deno/cli/tests/testdata/wasm_url.js

const module = await WebAssembly.compileStreaming(
  fetch("http://localhost:4545/unreachable.wasm"),
);
const instance = new WebAssembly.Instance(module);

// Compare the stack trace with wasm_unreachable.js, which compiles the WASM
// module with synchronous APIs.
instance.exports.unreachable();
feat: Show the URL of streaming WASM modules in stack traces (#12268) WebAssembly modules compiled through `WebAssembly.compile()` and similar non-streaming APIs don't have a URL associated to them, because they have been compiled from a buffer source. In stack traces, V8 will use a URL such as `wasm://wasm/d1c677ea`, with a hash of the module. However, wasm modules compiled through streaming APIs, like `WebAssembly.compileStreaming()`, do have a known URL, which can be obtained from the `Response` object passed into the streaming APIs. And as per the developer-facing display conventions in the WebAssembly Web API spec, this URL should be used in stack traces. This change implements that. 2021-10-10 10:03:23 -04:00			`const module = await WebAssembly.compileStreaming(`
			`fetch("http://localhost:4545/unreachable.wasm"),`
			`);`
			`const instance = new WebAssembly.Instance(module);`

			`// Compare the stack trace with wasm_unreachable.js, which compiles the WASM`
			`// module with synchronous APIs.`
			`instance.exports.unreachable();`