ocket8888

Yes, that should be exactly how it works.

You can. Note that the problem is fixed in APIv4.

`globalThis.navigator.userAgentData` is a great interface for doing that without parsing the insane jumble of text that UA strings have become - but it's not available in Firefox (or Safari or...

It's unlikely to be a performance bottleneck, especially since if done correctly it should only be calculated once. Speed is a non-issue. Whatever library is easiest to use and/or smaller...

If it's really a requirement that any working ATC instance have this Parameter, it ought to be in our seed data

> either `edgeHeaderRewrite` or `midHeaderRewrite` This also affects `cacheurl` and probably `firstHeaderRewrite`, `lastHeaderRewrite`, and `innerHeaderRewrite` as well.

This also affects server deliveryservice assignment through the `/servers/{{ID}}/deliveryservices` endpoint.

This also affects server-to-Delivery Service assignment through the `/cachegroups/{{ID}}/deliveryservices` endpoint.

In addition to failing checks, there are a lot of warnings being output by [the documentation build action on this PR](https://github.com/apache/trafficcontrol/runs/4792555847?check_suite_focus=true)

What's the motivation for this? Check extensions just run as scripts with no actual dependency on the Perl TO codebase, right?