Enhancement: Proper HTTP return code

[hydrian]

I'm currently creating a backup script for PFSense. I'm trying to detect when invalid login credentials are provided. Right now the response page returns with a HTTP error code 200 with only the language specific string. I'd like to implement the invalid credential detection so it is not language specific.

I'd like to propose that pfsense's login page returning a 401 HTTP response code when invalid credential are submitted.

[hydrian]

I'm sending my credential information to https://${PFS_HOSTNAME}/index.php