im using tt-rss on debian with the “official” Android-App.
The Apache-Server on debian has a certificate, that is signed by my own CA.
I’ve deployed this “Root-CA” in all my clients (WIndows, Linux, Android) and have used it with th ttrss-app using an https://-URI succesfully for years.
Since the update to version 1.236 of the app a few days ago i get the error:
“java.security.cert.CertPathValidatorException: Trust anchor for certification path not found”
Using an http://-URI still works.
Using SSL with my “Root-CA” still works in Firefox, Chrome, K9-Mail and so on on same Android-Devices (Nexus4-Phone and Nexus7-Tablet (both on actual LineageOS)).
Using Tt-Rss in a browser with SSL on different Computer (with imported “Root-CA”) still works.