Add parameter to each HTTP request in UIWebView

Question

Hi,

I'd like to be able to add an HTTP parameter (i.e. http://addr?myParam=...) to each request created by the UIWebView control in my application. This is easily done when loading the initial page (via loadRequest) but I need to do this for request triggered as a result of user navigation, etc. I noticed that I can capture all requests in by using the UIWebViewDelegate (webView:shouldStartLoadWithRequest:navigationType:) but I'm uncertain I can actually modify them. Is this possible in any way?

Thanks in advance!