EventSub doesn't support "redirects" for verification/data sendings

[BarryCarlyon]

Brief description

EventSub docs doesn't note that when calling the callback for the Webhook transport it will not follows redirects.

Expected documentation

A note in https://dev.twitch.tv/docs/eventsub about this.

(Also I wonder if important stuff like this needs a "danger box" in the docs for clarity)

Additional context or questions

https://discuss.dev.twitch.tv/t/google-apps-script-eventsub/30983/27

[scott-a-white]

Thanks for reporting the issue. Fixed: https://dev.twitch.tv/docs/eventsub/eventsub-reference#transport.