1 files changed, 6 insertions, 4 deletions
diff --git a/iOSClient/Viewer/NCViewerNextcloudText/NCViewerNextcloudText.swift b/iOSClient/Viewer/NCViewerNextcloudText/NCViewerNextcloudText.swift
index 9b7335c57..28c862cb7 100644
--- a/iOSClient/Viewer/NCViewerNextcloudText/NCViewerNextcloudText.swift
+++ b/iOSClient/Viewer/NCViewerNextcloudText/NCViewerNextcloudText.swift
@@ -178,10 +178,12 @@ class NCViewerNextcloudText: UIViewController, WKNavigationDelegate, WKScriptMes
     // MARK: -
 
     public func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
-        if let serverTrust = challenge.protectionSpace.serverTrust {
-            completionHandler(Foundation.URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust: serverTrust))
-        } else {
-            completionHandler(URLSession.AuthChallengeDisposition.useCredential, nil)
+        DispatchQueue.global().async {
+            if let serverTrust = challenge.protectionSpace.serverTrust {
+                completionHandler(Foundation.URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust: serverTrust))
+            } else {
+                completionHandler(URLSession.AuthChallengeDisposition.useCredential, nil)
+            }
         }
     }