WebGL unable to parse compressed build

I am trying to launch a unity 3d game on a web page on my .NET web app. I have added the WebGL build of the game into my .NET project directory, and the game is being found and displayed on the web page, but when the loading bar is almost full, I get this error within the Unity game window:

Unable to parse Build/WebGLTestBuild1.framework.js.gz! This can happen if build compression was enabled but web server hosting the content was misconfigured to not serve the file with HTTP Response Header “Content-Encoding: gzip” present. Check browser Console and Devtools Network tab to debug.

I have tried several things to get around this error (including changing my .config file in my web app), and succeeded once, but it seemed random and I was unable to avoid the error again. Please let me know if you have seen this error and know how to fix it, I have also attached an image of the problem. Thanks!

9613247–1364111–IMG_2766.pdf (335 KB)

follow the instructions on how to setup the webserver to send the encoding - much as unity say its how it should be, its kinda not normal or so many of us wouldnt have these issues…

Do you know where I can find these instructions?

No it will be as quick for you to google it as it would be me, its also on this forum somewhere a few times too

https://docs.unity3d.com/2020.1/Documentation/Manual/webgl-server-configuration-code-samples.html

NOT WORKING ATT ALL!
I tried many ways but it doesn’t works!

windows server 2019 IIS 10

its changed since 2020, so if you dont have 2020, you should look to more current documentation, but it can and does work if you get it right