Server requirments

I’m struggling getting WedGL to work on my host’s server.Simply added the mime types was not a solution. Looking at the .htaccess generated by Unity, and a web.config file from another post, I see that you are releasing and reassigning types. I am unfamiliar with the inner working of web development.
In any case, the default Unity WebGL published content does not work on this particularly server setup and probably others, even after adding the mime types. What additional information can I provide my host to get it working? Thanks.

In case either of these are useful