When running 2 Web Applications on IIS and protected by SiteMinder Web Agents. On one of the internal pages of the application while clicking on the Submit button, the browser gets the message
"This page is used to hold your data while you are being authorized for your request. You will be forwarded to continue the authorization process. If this does not happen automatically, please click the Continue button below. "
This seems to be related to the Agent ACO parameter " PreservePostData".
If there is a request for a Protected resource with a METHOD of "POST", the Agent populates the Post Preservation FORM with the FORM Post variables of the POST page, so that these variable values are not lost when the user must be redirected to Authenticate.
Once the User has been redirected and Authenticated, and then Authorized access to the POST action, these variables are populated again with the previous values from the Post Preservation FORM, so that the POST is successful.
Post Preservation can be disabled with the ACO parameter PreservePostData (1).
Disable POST Preservation, the POST preservation of the variables is not needed.