I don't want to be tracked. The options are: swurl is ok with denying users access that it can't spy upon. I am ok with that. Or swurl builds code in a way to gracefully still work if a script doesn't get load. This would be good when google tag manager has a bug and no longer works, and for users who are behind proxy/dns pihole systems or other system settings that prevent them from being tracked.

And for your reference, i enabled googletagmanager in uMatrix, but it still got blocked by uBlock origin. I suspect even if i were to disable both uMatrix/uBlock origin extensions, then my pihole would still block it.

As per using caching proxies , use dns cname. So security conscious people / paranoid configurations know that the caching proxy is in your control and wont leak cookies from other domain accesses. So define something like pix-cdn.swurl.com or static.swurl.com .