Wow, it was messy but I eventually got it working. Can’t tell you definitively if I needed to do all of the steps below but after translating from:
I upgraded my nginx from jesse backports to
nginx version: nginx/1.10.3
and then added to my nginx config
proxy_set_header X-Forwarded-Proto https;
Then did the normal troubleshooting restart of everything…
Shut down Seahub and Seafile
Cleared Seahub Cache
Cleared Browser Cache
Service Nginx Stop and then Start
Started Seafile and Seahub
And, it works. Still some testing to be done…