dont fail if server not found

source/ShowScenes.brs

@@ -253,7 +253,6 @@ function CreateServerGroup()
                 dialog.title = tr("Connecting to Server")
                 m.scene.dialog = dialog
                 serverUrl = inferServerUrl(screen.serverUrl)
-                if serverUrl = invalid then serverUrl = ""
                 'If this is a different server from what we know, reset username/password setting
                 if m.global.session.server.url <> serverUrl
                     set_setting("username", "")

source/utils/misc.brs

@@ -198,12 +198,12 @@ function inferServerUrl(url as string)
         handled += 1
         if handled = reqs.count()
             print("ALL HANDLED")
-            return invalid
+            return ""
         end if
     end while
     print "TIMED OUT"
     ' we never actually get here but the linter can't tell
-    return invalid
+    return ""
 end function
 
 function urlCandidates(input as string)