Hi, I am trying to send method invocations from JavaScript to Objective-C and vice versa. Everything works fine for window.location triggered urls, which are catched by shouldStartLoadWithRequest. Now if I try to use an AJAX call instead, shouldStartLoadWithRequest is not called. Is there a way to do this? Mainly I do not want to be restricted to the max URL size on data that can be passed from JavaScript to Objective-C.

My UIWebViewDelegate implements:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
 NSString *url = [[request URL] absoluteString];
 NSRange urlrange = [url rangeOfString:@"myScheme://"];
 if(urlrange.length > 0){
  NSLog(@"this is an objective-c call, do not load link: %@", [url substringWithRange:NSMakeRange(urlrange.location, [url length])] );
  return NO;
 } else {
  NSLog(@"not an objective-c call, load link: ", url );
  return YES;
 }
}

My JavaScript calls:

// works
window.location.href = "myScheme://readyHref";  

// fails
var xmlHttpReq = false;
if (window.XMLHttpRequest) {
 xmlHttpReq = new XMLHttpRequest();
} else if (window.ActiveXObject) {
 xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlHttpReq.open('GET', "myScheme://readyAJAX", false);
xmlHttpReq.send();