Having issues with loading .wasm files in benchmarks

[dsafa]

I'm interested in running some code that uses wasm, but when running the benchmarks, it throws compile errors. For example:

Uncaught CompileError: WebAssembly.instantiateStreaming(): section (code 1, "Type") extends past end of the module (length 9396207, remaining bytes 1347243) @+8

Looking at the network tab and downloading the wasm binary from there, it is different than the file that is located in node_modules, so it seems like its being modified somewhere.

Here is a small test case

index.html

<script type="module">
import * as bench from '/bench.js';

const brotli = await import("brotli-wasm/index.web.js").then(m => m.default);

const textEncoder = new TextEncoder();
const input = 'some input';

const uncompressedData = textEncoder.encode(input);

bench.start();
const compressedData = brotli.compress(uncompressedData);
bench.stop();

</script>

package.json

{
  "name": "tachometer-wasm",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {},
  "author": "",
  "license": "ISC",
  "dependencies": {
    "brotli-wasm": "^3.0.1"
  }
}

Reproduction steps:

1. run tachometer ./index.html

Expected results:

1. No errors and benchmark should run

Actual:

1. there is a CompileError thrown and the file brotli_wasm_bg.wasm fetched by the browser differs from the file in node_modules\brotli-wasm\pkg.web\brotli_wasm_bg.wasm