2969 - re-issed code to address when developer doesn't have certificate installed.

Jellyfin.Server/Program.cs

@@ -272,9 +272,7 @@ namespace Jellyfin.Server
                         {
                             _logger.LogInformation("Kestrel listening on {IpAddress}", address);
                             options.Listen(address, appHost.HttpPort);
-                            if (appHost.EnableHttps)
+                            if (appHost.EnableHttps && appHost.Certificate != null)
-                            {
-                                if (appHost.Certificate != null)
                             {
                                 options.Listen(address, appHost.HttpsPort, listenOptions =>
                                 {
@@ -283,6 +281,8 @@ namespace Jellyfin.Server
                                 });
                             }
                             else if (builderContext.HostingEnvironment.IsDevelopment())
+                            {
+                                try
                                 {
                                     options.Listen(address, appHost.HttpsPort, listenOptions =>
                                     {
@@ -290,6 +290,10 @@ namespace Jellyfin.Server
                                         listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
                                     });
                                 }
+                                catch (Exception ex)
+                                {
+                                    _logger.LogError(ex, "Error whilst listing to https - Is a development certificate installed?");
+                                }
                             }
                         }
                     }
@@ -298,9 +302,7 @@ namespace Jellyfin.Server
                         _logger.LogInformation("Kestrel listening on all interfaces");
                         options.ListenAnyIP(appHost.HttpPort);
 
-                        if (appHost.EnableHttps)
+                        if (appHost.EnableHttps && appHost.Certificate != null)
-                        {
-                            if (appHost.Certificate != null)
                         {
                             options.ListenAnyIP(appHost.HttpsPort, listenOptions =>
                             {
@@ -309,6 +311,8 @@ namespace Jellyfin.Server
                             });
                         }
                         else if (builderContext.HostingEnvironment.IsDevelopment())
+                        {
+                            try
                             {
                                 options.ListenAnyIP(appHost.HttpsPort, listenOptions =>
                                 {
@@ -316,6 +320,10 @@ namespace Jellyfin.Server
                                     listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
                                 });
                             }
+                            catch (Exception ex)
+                            {
+                                _logger.LogError(ex, "Error whilst listing to https - Is a development certificate installed?");
+                            }
                         }
                     }
                 })