diff --git a/docs/Custom-iOS.md b/docs/Custom-iOS.md
index a9c9f72..fcdfadb 100644
--- a/docs/Custom-iOS.md
+++ b/docs/Custom-iOS.md
@@ -132,6 +132,16 @@ Once these are exposed, you can reference them in your custom web view class.
 }
 ```
 
+### Setting Client Certificate Authentication Credential
+
+If you open webpages that needs a Client Certificate for Authentication, you can create a credential and pass it to the webview:
+
+```
+[RNCWKWebView setClientAuthenticationCredential:credential];
+```
+
+This can be paired with a call from Javascript to pass a string label for the certificate stored in keychain and use native calls to fetch the certificate to create a credential object. This call can be made anywhere that makes sense for your application (e.g. as part of the user authentication stack). The only requirement is to make this call before displaying any webviews.
+
 ## JavaScript Interface
 
 To use your custom web view, you'll need to create a class for it. Your class must:
diff --git a/ios/RNCWKWebView.h b/ios/RNCWKWebView.h
index d3ad66d..328ca9d 100644
--- a/ios/RNCWKWebView.h
+++ b/ios/RNCWKWebView.h
@@ -44,6 +44,7 @@
 @property (nonatomic, assign) BOOL cacheEnabled;
 @property (nonatomic, assign) BOOL allowsLinkPreview;
 
++ (void)setClientAuthenticationCredential:(nullable NSURLCredential*)credential;
 - (void)postMessage:(NSString *)message;
 - (void)injectJavaScript:(NSString *)script;
 - (void)goForward;
diff --git a/ios/RNCWKWebView.m b/ios/RNCWKWebView.m
index c8e8116..f505657 100644
--- a/ios/RNCWKWebView.m
+++ b/ios/RNCWKWebView.m
@@ -15,6 +15,7 @@
 
 static NSTimer *keyboardTimer;
 static NSString *const MessageHandlerName = @"ReactNativeWebView";
+static NSURLCredential* clientAuthenticationCredential;
 
 // runtime trick to remove WKWebView keyboard default toolbar
 // see: http://stackoverflow.com/questions/19033292/ios-7-uiwebview-keyboard-issue/19042279#19042279
@@ -386,6 +387,25 @@ static NSString *const MessageHandlerName = @"ReactNativeWebView";
   return [[NSMutableDictionary alloc] initWithDictionary: event];
 }
 
++ (void)setClientAuthenticationCredential:(nullable NSURLCredential*)credential {
+  clientAuthenticationCredential = credential;
+}
+
+- (void)                    webView:(WKWebView *)webView
+  didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
+                  completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable))completionHandler
+{
+  if (!clientAuthenticationCredential) {
+    completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
+    return;
+  }
+  if ([[challenge protectionSpace] authenticationMethod] == NSURLAuthenticationMethodClientCertificate) {
+    completionHandler(NSURLSessionAuthChallengeUseCredential, clientAuthenticationCredential);
+  } else {
+    completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
+  }
+}
+
 #pragma mark - WKNavigationDelegate methods
 
 /**