Wkwebview SSL Auhtentication with .p12 certificate

I have deployed a angular site with nginx server in GKE and set the SSL authentication. I installed the client certificate using Mobileiron Cloud MDM in my ipad. Then i was able to access and validate the certificate using Safari . But when i trying to do the same thing using my application WkWebView it always giving me the "400 Bad Request" error. After some search i realize that we cannot acces the certificates which installed in the Apple Key chain and it they can be only access by applications Safari or apple Mail app. As a solution for this problem then i set the client certifcate inside App Bundle and was able to do the authentication by importing it using "SecPKCS12Import" and do the authentication.

let securityError = SecPKCS12Import(data as NSData,
                      [ kSecImportExportPassphrase as String : password ] as CFDictionary,
                      &_items);

Now WKwebView is loading only if authentication is correct. But for this methos i need to upload the client certificate to my App Bundle.

So i would like to know, is there a way to do the SSL authentication in WKWebview without bundeling the client certificate to app bundle. I would like a way that i can deploy it in a remote way like Mobileiron Cloud MDM(i already have the subscription so there is no probles accesing all Mobileriron services.) and access that certifcate to authenticate in the WKWebview url loading.