When attemping a PSM session the below Java popup appears on every PSM attempt, even if the "Do not show this again for this app and web site" option has previously been ticked.
"Allow access to the following application from the web site?
Application: SSH VNC Applet
This web site is requesting access and control of the Java application shown above. Allow access only if you trust the web site and know that the application is intended to run on this site.