Hello! I think I've found an issue in the Instance Configuration page of Phacility Admin. I tried to set the feed.http_hooks setting to the following:
However, when I pressed save, it appeared like this:
Luckily, the correct (non-escaped) value got sent to my Phabricator instance, and the HTTP hook is working properly. Thus, it appears to be merely a cosmetic issue in Phacility Admin.