WKWebView: trouble using evaluateJavaScript from remote URL requiring Basic Auth - ios

Question

I have a remote JavaScript file that I would like to load from WKWebView. The dev Website the JavaScript file is on requires Basic Auth in order to Access.
The JavaScript file needs needs to load as a result of a button.
In otherwords, I can't use the WKUserScript injectionTime options.
I have two code examples. Both of them only half work. I can't test if the auth works without the EvaluateJavascript working, and I can't test the EvaluateJavascript function without the Basic Auth working... so... using WKWebView * webView...
NSString *authStr = #"username:password";
NSData *authData = [authStr dataUsingEncoding:NSUTF8StringEncoding];
NSString *authValue = [NSString stringWithFormat: #"Basic %#",[authData base64EncodedStringWithOptions:0]];
NSURL* jsURL = [NSURL URLWithString:#"http://dev.xxxx.com/js/xxxxx.js"];
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:jsURL];
[request setValue:authValue forHTTPHeaderField:#"Authorization"];
[_webView loadRequest:request];
I can see the javascript in the webView window, but it is not being evaluated.
Then I have this other strategy:
- (void)handleButton {
NSURL* jsURL = [NSURL URLWithString:#"http://dev.xxxx.com/js/xxxxx.js"];
_scriptString = [NSString stringWithContentsOfURL:jsURL usedEncoding:NSUTF8StringEncoding error:nil];
}
-(void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential *))completionHandler{
if (challenge.previousFailureCount == 0){
NSURLCredentialPersistence persistence = NSURLCredentialPersistenceForSession;
NSURLCredential *credential = [NSURLCredential credentialWithUser:#"username" password:#"password" persistence:persistence];
completionHandler(NSURLSessionAuthChallengeUseCredential,credential);
NSLog(#"in Auth");
}
else{
NSLog(#"%s: challenge.error = %#", __FUNCTION__, challenge.error);
completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
}
}
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
NSLog(#"navigation complete");
NSLog(#"scriptString %#", _scriptString); //Says UNAUTHORIZED
if ([_scriptString length] > 0) {
[_webView evaluateJavaScript:_scriptString completionHandler:^(NSString *result, NSError *evaluateError) {
if (result == nil) {
NSLog(#"no go dude: %#", evaluateError);
return;
}
NSData *data = [result dataUsingEncoding:NSUTF8StringEncoding];
NSLog(#"i think it worked: #%", data);
}];
}
}
Any help would be greatly appreciated!!

Answer 1

I loaded the javascript URL in Safari on my iPhone, and entered the basic auth username and password into the popup.
Then, this is the code that worked:
NSURL *jsURL = [NSURL URLWithString:#"http://username:password#dev.xxxx.com/js/xxxxxx.js"];
NSString *injectedJS = [NSString stringWithContentsOfURL:jsURL encoding:NSUTF8StringEncoding error:nil];
[_webView evaluateJavaScript:injectedJS completionHandler:nil];