Ok guys, here's another clue. I cannot create a link via Chrome with the forum embedded & redirected, but can if I don't redirect and go directly onto N8.
I took the redirect out, copied the URL, and logged in directly to N8. Went to a recent post, clicked Reply, then Link, and got the link popup.
Then I put the redirect back in, went to the same post, clicked Reply, clicked Link, and got nothing.
I still have the straight-in tab open and can get the Link button to work perfectly each and every time. And I have the redirected tab open and cannot get Link to work whatsoever. Same computer, same browser, adjacent tabs.
And, I think this may have something to do with our inability to log into our instance of Nabble on the AWS servers if we go into the embedded site. We can using Firefox, which also works with the Link button, but cannot log in using Chrome. However, going straight into the AWS server w/o the embedding we can log in using any browser.
If you can fix that problem on N8 and tell Pedro how to fix it on our instance on AWS we could probably be off of N8 pretty quickly. But until we get that problem solved we can't put the AWS instance into production.
Help, please!