Xert already adds a bunch of stuff to the strava description, it would be very useful for me to have the xert workout URL inserted into the strava description too. Thanks!
Strava does not allow URLs in posts.
That’s what I thought too but when I tested it just now on an activity description it works. 
Turns out they changed their policy in March and restored many URLs that were lost during the original purge of everything.
Descriptions work but I don’t know if that’s also supported through their API versus a manual post by account holders.
Details in this article – Links on Strava – Strava Support
That’s correct. People rightly lost their minds on them about it