Ports

If you include a port number that is the standard port number for the protocol being used (for example port 80 for HTTP, port 443 for HTTPS), the port number is ignored and the entry is treated as described above. If the port number is a non-standard port for the protocol being used, the proxy will match only URLs that include the port number.

For example, if you enter www.abc.com:8080/, then http://www.abc.com:8080/mysite will match, but http://www.abc.com/mysite will not.