I'm having an issue with SharePoint/InfoPath and Netscaler and in trying to diagnose the problem we're trying to figure out how web service calls from InfoPath work. If the form is filled out in the browser, are data calls made from the client's machine or from the server side (SharePoint)? I always assumed the data calls were made server side, but with what we're seeing that doesn't seem to be the case, but using fiddler we also don't see the calls being made from the client machine.
Sorry if this duplicated, but with my search I couldn't find an answer to this question.