unusable as it either cuases a simple gre screen in webgl builds or gives the already mentioned http error. it broke my project

[Morisander]

[crispcat]

You need to disable compression for your WebGL build.
https://docs.unity3d.com/Manual/webgl-deploying.html

[Morisander]

hey mate, did not await a response that fast^^
i tried it to disable the compression for the build, and let it run a fresh build (right after freshly importing your plugin, and running the build only on your test scene, and a separate for my actual scene) and it had the same result, of a "successful" build but without any showing content (not evene the "made with unity" logo)

[crispcat]

And what the browser console says now with compression disabled? Same thing?

[WoodsFiend]

I fixed this issue by deleting the Libs folder and adding the deps into my webGL template. There seems to be an error in one of those libs. My errors kept pointing to a minified bit of script in the compile javascript "USER_JSPRE_PLACEHOLDER"