CMS 1.8.1 Content will not be downloaded by Windows Player

OK. Did you verify the ProxyPerserveHost setting is on in your reverse proxy configuration as suggested?

i am doing the https secure now new. Because an employee did this before. I use your guide Xibo 1.8.0 with Docker on Ubuntu 16.04
I did everything to _service apache2 restart But how can i add my certificate to that configuration?

The guide you linked to to generate a new certificate with Lets Encrypt. That provides its own proper SSL certificate.

If you want to use your own, then there’s a community contributed guide here:

I am noticing that the path variable in requiredFiles.xml is referencing http instead of https. This may be a related issue when behind a proxy.

You may need to tell Apache to add X-Forwarded-Proto header as HTTPS. Xibo will look for that to understand if access is via SSL or not.

I believe:

RequestHeader set X-Forwarded-Proto "https"

Inside your SSL reverse proxy will do that.

That makes sense however when accessing the docker host (localhost:8081) via https I get “SSL_ERROR_RX_RECORD_TOO_LONG”. I believe that may be the root issue.

The local Docker container can’t do https, so you won’t be able to connect to it directly over https. Only over http.

The change I suggested goes in your reverse proxy configuration, not in the container.

I see. RequestHeader set X-Forwarded-Proto “https” fixed it for me. Thanks once again.