Empty chunk file causes blocked request

[trailsnail]

Hi,

we are using Cloudflare and see since beta.39 that empty chunk file requests are blocked because of wrong mimetype

Laden des Moduls von ".../js/shoelace/chunks/chunk.IOPR7B7N.js" wurde auf Grund eines nicht freigegebenen MIME-Typs ("text/html") blockiert.

This results in half rendered GUI / missing components, because Cloudflare seems to cache mime type https://community.cloudflare.com/t/incorrect-mime-type-returned-from-cloudflare/202060

Any ideas, how we can get this working?
Atm we set a whitespace manually in every empty chunk file

The files are physically existent, and callable in local dev environment, without cloudflare in use - don't think about the 404 status in screen

🍻

[claviska]

I'm not sure why the mime type is wrong for empty chunks. Is that CloudFlare's doing? I'm also not sure why esbuild is producing empty chunks in the first place.

Does it help to manually clear cache in CloudFlare? I'm thinking it must be a CF setting because I haven't heard of any problems with beta.39 on jsDelivr or other CDNs.

[trailsnail]

No it doesn't help to clear the cloudflare cache. The only way to resolve atm is a whitespace in this 3 files, which has the problem togehter with CF

[staabm]

I'm not sure why the mime type is wrong for empty chunks. Is that CloudFlare's doing? I'm also not sure why esbuild is producing empty chunks in the first place.

Since http requests for empty files are unnecessary overhead - at best this would be resolved by not creating empty chunks in the first place - I guess

[claviska]

I agree, but not sure if there's a way to prevent esbuild from generating them. It might make sense to investigate this more there.

[staabm]

Could you give us some pointer how this could be investigated?

We cannot update shoelace atm like any other javascript dependency via dependabot, because we need to patch each release manually

[claviska]

It might be worth asking on the esbuild project, but I haven't found any queries about it yet so I'm wondering if it's actually a server/CDN config.