For WebGL, only requests to Bing Maps use our proxy.
All other requests go directly.
So if you use Custom Provider URL, all your requests will not use our proxy.

I'm aware that there are limitations with WebGL when it comes to networking capability. I read on your documentation that all of the built-in links are routed the infinity code server to get around WebGL's blocks. I was wondering how do we go about getting custom urls to work on WebGL. My requirement is that every works from offline data served locally on a machine, therefore I cannot rely on routing requests through your server.

I am currently looking at this forum post to see if hosting the WebGL page in the same domain will help:
https://forum.unity.com/threads/webgl-w … se.328419/

I wanted to ask if you know of a better solution