Uncaught error from WebAssembly

[friskgit]

Hi,

Just for infformation: After compiling a simple Faust patch with faustwasm -wpa I received the following error message from WebAssembly:

Response has unsupported MIME type 'application/octet-stream' expected 'application/wasm'

In my interpretation this would be an error on the part of the server? The same page loads fine on a local server (python3 -m http.server). Changing the following line in create-node.js:

const dspModule = await WebAssembly.compileStreaming(await fetch("./dsp-module.wasm"));

to:

const dspModule = await WebAssembly.compile(await fetch("./dsp-module.wasm").then(res => res.arrayBuffer()));

got rid of the problem and is fine in this particular context. Again, this likely has to do with the servers erroneous response, right?

Best,
/Henrik

[sletz]

Hoping @Fr0stbyteR has an idea here.

[sletz]

@friskgit how is you code deployed ? Which kind of server ?

[Fr0stbyteR]

Yes the server need to be configured for *.wasm files to be sent as application/wasm MIME type, so the simple python command is not enough in this case.

[Fr0stbyteR]

Maybe try this https://github.com/cggallant/blog_post_code/blob/master/2020%20-%20July%20-%20Extending%20Python%E2%80%99s%20Simple%20HTTP%20Server/Python%203.x/wasm-server.py

[friskgit]

Yes the server need to be configured for *.wasm files to be sent as application/wasm MIME type, so the simple python command is not enough in this case.

Great, that's what I thought. I will let my web host know that and in the mean time I'm using the hack that works for now.

[friskgit]

Maybe try this https://github.com/cggallant/blog_post_code/blob/master/2020%20-%20July%20-%20Extending%20Python%E2%80%99s%20Simple%20HTTP%20Server/Python%203.x/wasm-server.py

Ah, I will check that out, but as i wrote, the simple python server actually does work. It was my web server that didn't work. Sorry for being unclear.