Redirect HTTP Traffic to HTTPS on a Nonstandard Port.

You can't run http and https on the same ports (8900).

Update: I stand corrected, looks like it can be done,

 when CLIENT_ACCEPTED { 
     Set a variable to track whether this is an HTTPS request 
    set https 0 
 } 
 when CLIENTSSL_HANDSHAKE { 
     There was a client side SSL handshake, so update the variable 
    set https 1 
 } 
 when HTTP_REQUEST { 
     If it's not an HTTPS connection, send a redirect 
    if {not ($https)}{ 
       HTTP::redirect https://[getfield [HTTP::host] : 1][HTTP::uri]
    } 
 }