Handle exceptions for voting

Maybe fixes #1961

src/background.ts

@@ -222,7 +222,7 @@ async function submitVote(type: number, UUID: string, category: string) {
 
     const typeSection = (type !== undefined) ? "&type=" + type : "&category=" + category;
 
-    //publish this vote
+    try {
         const response = await asyncRequestToServer("POST", "/api/voteOnSponsorTime?UUID=" + UUID + "&userID=" + userID + typeSection);
     
         if (response.ok) {
@@ -245,6 +245,14 @@ async function submitVote(type: number, UUID: string, category: string) {
                 responseText: await response.text()
             };
         }
+    } catch (e) {
+        console.error(e);
+        return {
+            successType: -1,
+            statusCode: -1,
+            responseText: ""
+        };
+    }
 }