Has anybody other than myself totally failed to get webmail to work on britiac3?
Multiple 'X-Frame-Options' headers with conflicting values ('DENY, sameorigin') encountered when loading 'https://webmail.********/cpsess********/3rdparty/roundcube/?_task=mail'. Falling back to 'DENY'.
Refused to display 'https://webmail.********/cpsess********/3rdparty/roundcube/?_task=mail' in a frame because it set 'X-Frame-Options' to 'DENY, sameorigin'.
Uncaught SecurityError: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Sandbox access violation: Blocked a frame at "https://webmail.********" from accessing a frame at "null". The frame being accessed is sandboxed and lacks the "allow-same-origin" flag.
This is in Chrome on Windows 10. Similar behaviour in XP. In Firefox on win10 the error might be slightly more informative. It says...
The site specified an invalid Strict-Transport-Security header.
So is this a "certificates" problem, Cookie? How do I solve it?