http to https with POST Parameters impossible?

As you've found, redirecting a POST request triggers the client to make a GET request to the new Location. Any POST data is lost in the process. In terms of LTM configuration, it would probably be easiest to rewrite the response which generates the POST via HTTP so that the POST is made via HTTPS.

 

 

What are you trying to accomplish by redirecting the requests to HTTPS? Are you trying to prevent sensitive data from being sent in the clear? If so, the data is potentially already being sent by the time you're trying to redirect the client requests. In this case you would want to ideally try to prevent the HTTP request before it's made. If the response which generates the HTTP request is sent to the client through LTM, you could potentially rewrite it to reference the HTTPS VIP.

 

 

Or are you redirecting because the application is now answering only for HTTPS? If so, you could try to send the request to the server(s) without redirecting them. You might be able to do this by adding a server SSL profile to the VIP and selectively enabling it for requests which need to be sent to the server encrypted, or by using HTTP::retry in 9.2+, or by using the virtual command in 9.4+.

 

 

Aaron