Same error for me as well. The Symantec Class 3 Secure Server CA - G4 is not in the chrome certificate store.
As a temporary fix, I just saved the cert to disc and imported it into chrome. You can get it here: https://knowledge.symantec.com/kb/index?page=content&actp=CROSSLINK&id=INFO2045 Advanced Settings -> Https/SSL "Manage certificates" I just hope Symantec hasn't been compromised or something... Version 53.0.2785.143 Built on Ubuntu , running on LinuxMint 17.3 (64-bit) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1641380 Title: chromium-browser: ERR_CERTIFICATE_TRANSPARENCY_REQUIRED for Symantec certs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1641380/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
