Using proxy auth, sessions appear to time out.

[chapmanworld]

I'm not sure if this should be a bug report, or if I've incorrectly configured.

I have kanboard running behind a vhost on an apache2 server ( linux ), and have configured kanboard to use the proxy authentication settings as per documentation. The vhost uses alternative (user file) based basic auth.

I suspect that the user session, created when passing through basic auth, eventually times out.
Everything works as expected up to this time-out point, at which time everything fails with odd error messages. Some actions report errors pertaining to not having permission, while other actions report validation errors in forms which should pass validation. Creating a project for instance, an error message along the lines of "you need to provide a project name", despite a valid project name being in the input field.

When these errors occur, I log out and refresh the page, the browser cached basic auth credentials are accepted, a new session is created, and I'm able to continue using kanboard again with no issues.

I do not know if this is a bug in the proxy-auth feature, or if there is a configuration option that I'm missing. I can work around the problem, but hope that there is some setting that I can change to fix this?