I have switched to using Content-Security-Policy for my website. I'm starting to see reports about the following not being allowed: https://www.pagespeed-mod.com/v1/taas
Does anyone know why the website is trying to load this file? I'm using Google Analytics and Tag Manager, but I don't think that I have any page speed mod installed. Maybe this is an extension in the user's browser? Or when they open developer tools? Another source I could think of is automatic optimization through Cloudflare which I'm also running on.
Extra info: The source of loading this script is https://3001.scriptcdn.net/code/static/1 which doesn't reveal much about who made that.