I am sending a form as an XDP via HTTP Submit. The HTTP endpoint is returning another XDP to merge into the document. I would like to make some modifications to the Connection DOM before the data is merged into the form. I would like to do this through the postSubmit event. The problem I am having is that the postSubmit event fires immediately after the submit button is clicked, long before the response is returned from the host. Is there any way to modify the data coming back before it is merged? I am using Designer ES4 and Acrobat 11.