MIME Type Errors in H2o Lightwave example

[jg-xyz]

hey, I'm following the example for Lightwave on this medium page I'm getting mime type errors.

I'm running this in a virtual env on Windows and have tried both python 3.10 and 3.11. I saw on the release page for non-light wave that there was a fix implemented for this on Windows in v0.25.0, but I have v0.25.2 and I can't figure out a fix. I tried downgrading as well but no luck.

Error from dev console:

Loading module from “http://127.0.0.1:8000/wave-static/index-98d98a8e.js” was blocked because of a disallowed MIME type (“text/plain”)

[mturoci]

Hey!

Welcome to Windows lol. This is caused by bad windows registry defaults. You can read more here.

TLDR: You either need to change your registry or hack around it:

import mimetypes
mimetypes.add_type('application/javascript', '.js')
mimetypes.add_type('text/css', '.css')
mimetypes.add_type('image/svg+xml', '.svg')

I saw on the release page for non-light wave that there was a fix implemented for this on Windows in v0.25.0

Correct. However, this does only apply to H2O Wave since it comes with its own server that hosts the assets like JS/CSS etc.

Loading module from “http://127.0.0.1:8000/wave-static/index-98d98a8e.js” was blocked because of a disallowed MIME type (“text/plain”)

Since Lightwave assets need to be served by an upstream framework (e.g. fastapi), you need to refer to that one wrt to serving static assets.

[jg-xyz]

Nice! Thanks for the quick reply, I'll try this later

[mturoci]

Let me know if helped then :)

[jg-xyz]

Worked like a charm, thanks again!