When loading EditLive! for the first time in a browser session, a security warning dialog appears stating that the certificate has expired. Note that this is slightly different to the initial security warning dialog which states that the certificate is valid - that’s normal and users should choose to “Always Accept” the certificate to prevent it reappearing.
For security reasons, the EditLive! applet is signed with a digital certificate that verifies that the applet is provided by Ephox and that it hasn’t been modified maliciously. This lets users know that it is safe to run the applet. The digital certificates used to do this are issued by a trusted issuer who verifies that Ephox is a legitimate company, however the certificate can only be issued for a specific period of time - usually two years.
The security warning appears once the digital certificate used to sign the editlivejava.jar file has expired.
The simplest solution is to update to the latest version of EditLive! which will be signed with a valid certificate (we renew the certificate some time before it expires to help avoid this issue). Alternatively, users can simply choose to always accept the certificate again and the warning will not reappear.