Added better error messages to voting.

content.js

@@ -710,8 +710,13 @@ function vote(type, UUID) {
         //failure: duplicate vote
         addLoadingInfo("It seems you've already voted before", UUID)
       } else if (response.successType == -1) {
-        //failure: duplicate vote
-        addLoadingInfo("A connection error has occured.", UUID)
+        if (response.statusCode == 502) {
+          addLoadingInfo("It seems the sever is down. Contact the dev immediately.", UUID)
+        } else {
+          //failure: unknown error
+          addLoadingInfo("A connection error has occured. Error code: " + response.statusCode, UUID)
+        }
+        
       }
     }
   });