Further details on reverse proxies:
Reverse proxy is a proxy server that relays client requests fr om an external network to one or several servers in your internal network. It can be used for load balancing and security increase.
If you configured access to the web server where your 1C:Enterprise infobase is published via a reverse proxy and the proxy is configured incorrectly, certain functions in your system when accessed via the web interface can stop working. Typically, this happens because a request that comes to your 1C:Enterprise system's web server comes from a computer wh ere you have the reverse proxy installed rather than from an external client.
To avoid such problems, configure the reverse proxy to ensure that when forwarding an HTTP request, the X-Forwarded-Port, X-Forwarded-Host, and X-Forwarded-Proto request headings are formed correspondingly. In this instance, your 1C:Enterprise system can "restore" an external HTTP request correctly.
For more information on configuring reverse proxies, refer to the relevant Apache HTTP server documentation.