diff --git a/Applications/Controllers/BrowserController.cs b/Applications/Controllers/BrowserController.cs
index 01954a2..d86d871 100644
--- a/Applications/Controllers/BrowserController.cs
+++ b/Applications/Controllers/BrowserController.cs
@@ -512,6 +512,7 @@ private async Task StartServerAsync()
             // create cert validator
             config.CertificateValidator = new CertificateValidator();
             config.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_CertificateValidation);
+            config.CertificateValidator.Update(config.SecurityConfiguration).GetAwaiter().GetResult();
 
             // start the server.
             await _application.Start(new SimpleServer()).ConfigureAwait(false);