jianhua jianhua - 2 months ago 22
iOS Question

How to add customize HTTP headers in UIWebView request, my UIWebView is based on Cordova project?

My iOS UIWebView page is based on Cordova open source framework, and I want to add some customize http headers in its webview URL request, my solution is to add them in the following UIWebView delegate method.

Debug shows that headers are added successfully, but in fact the request doesn't bring them out. Using Wireshark to capture network packets and found only standard headers are available, no my customize ones.

My testing is based on simulator (iOS 7.1), anyone who has experience on this topic please share and discuss together, thanks in advance.

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
// Add customize http headers in UIWebView request
if([request isKindOfClass:[NSMutableURLRequest class]]) {

NSMutableURLRequest * mRequest = (NSMutableURLRequest *)request;
[mRequest setValue:@"1.1" forHTTPHeaderField:@"appVersion"];
[mRequest setValue:@"iPhone 4S" forHTTPHeaderField:@"deviceModel"];

return [super webView:webView shouldStartLoadWithRequest:request navigationType:navigationType];


You have two options either create a NSMutableUrlRequest at the start and load that with webView loadReqest or take over the complete URL loading of your app with NSURLProtocol.

The most easiest way is the first choice as its only one extra lines of code:

[webView loadRequest:mRequest];

The second choice uses NSURLProtocol to take over URL loading of your app. this involves registering your own solution using creating a concrete class. the main method to override is canonicalRequestForRequest.

I suggest you take a look at these two tutorials NSNipster and raywenderlich for guides.