Hello,

I found only one topic about Brotli here:

https://our.umbraco.com/forum/using-umbraco-and-getting-started/105165-where-are-settings-in-umbraco-for-gzip-or-brotli

and I'm wondering if maybe someone from you used this module:

https://github.com/microsoft/IIS.Compression

on your IIS to enable Brotli support for output compression.

I'm writing this topic as hosting company owner which has more than 4k clients and after installing mentioned IIS Compression module I had only two support tickets and both of them was related to white page on Umbraco applications. One is on v7 and two v8. I've noticed that only pages which are white ones are ones with public proper url for some page in CMS. Opening domain.com/umbraco showed correct login form and opening some non existing page like domain.com/contac (instead od contact) was also showing Umbraco generated 404 error. To solve this problem my customers had to disable compression for their apps in web.config with:

<urlCompression doStaticCompression="false" doDynamicCompression="false" />

does anyone have any idea why this is happening? This is also happening quite random. Maybe this has something to do with CPU based compression on IIS which can be disabled if CPU usage is too high and som Umbraco cached files are encoded?

Thanks