ios - WKWebView how to load HTTPS? -

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i use wkwebview load https , not work. function 

webview(    webview: wkwebview,     didreceiveauthenticationchallenge challenge: nsurlauthenticationchallenge,    completionhandler: (nsurlsessionauthchallengedisposition, nsurlcredential?) -> void)

can maybe, please tell me how use ?

if server's certificate signed trustful ca, can default behavior nsurlsession, means can behave safari. if want use authentication method, can use delegate method mentioned customize authentication.


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