AllowCONNECT
AllowCONNECT port [port] ... AllowCONNECT 443 563 Server config, virtual host Compatibility: AllowCONNECT is only available in Apache 1.3.2 and later.
The AllowCONNECT directive specifies a list of
port numbers to which the proxy CONNECT method may connect.
Today’s browsers use this method when a https
connection is requested and proxy tunneling over http is in effect.
By default, only the default https port (443)
and the default snews port (563) are enabled.
Use the AllowCONNECT directive to override this
default and allow connections to the listed ports only.