Dear all,

I experience problems using the Fetch API together with WebAssembly modules.

Firstly, I copy/paste the exact sample code from the [Introduction section of the Fetch API](https://emscripten.org/docs/api_reference/fetch.html#introduction), and put it inside a file called `test.c`.

Secondly, I create a basic `index.html` as follows:

```

Test

```

Finally, I compile the WebAssembly binaries (version 1.39.17 of Emscripten), and serve them using Python as follows:

```
export FLAGS="-s MAIN_MODULE=1 -s EXPORT_ALL=1 -s FETCH=1 -s WASM=1"
~/Downloads/emsdk/upstream/emscripten/emcc ${FLAGS} -DNDEBUG -O2 -o test.o -c test.c
~/Downloads/emsdk/upstream/emscripten/emcc ${FLAGS} -DNDEBUG -O2 test.o -o test.js
python -m SimpleHTTPServer 8000
```

When I open `http://localhost:8000/`, I get the following errors in the console:
* `Maximum call stack size exceeded` on Chromium, and
* `InternalError: too much recursion,__emscripten_fetch_load_cached_data` on Firefox.

The problem disappears if I don't use modules (i.e. if I remove `-s MAIN_MODULE=1`). Would the Fetch API be incompatible with WebAssembly modules? Is there a way to solve this issue?

Thanks for your great work on Emscripten!