closes #5613

public/src/app.js

@@ -191,11 +191,13 @@ app.cacheBuster = null;
 		if (!socket) {
 			return;
 		}
+		var previousRoom = app.currentRoom;
+		app.currentRoom = '';
 		socket.emit('meta.rooms.leaveCurrent', function (err) {
 			if (err) {
+				app.currentRoom = previousRoom;
 				return app.alertError(err.message);
 			}
-			app.currentRoom = '';
 		});
 	};
 

public/src/client/topic/postTools.js

@@ -295,7 +295,7 @@ define('forum/topic/postTools', [
 
 		socket.emit(method, {
 			pid: pid,
-			room_id: app.currentRoom,
+			room_id: 'topic_' + ajaxify.data.tid,
 		}, function (err) {
 			if (err) {
 				app.alertError(err.message);

public/src/client/topic/votes.js

@@ -67,7 +67,7 @@ define('forum/topic/votes', ['components', 'translator'], function (components,
 
 		socket.emit(currentState ? 'posts.unvote' : method, {
 			pid: post.attr('data-pid'),
-			room_id: app.currentRoom,
+			room_id: 'topic_' + ajaxify.data.tid,
 		}, function (err) {
 			if (err) {
 				if (err.message === 'self-vote') {

src/socket.io/posts/helpers.js

@@ -14,10 +14,14 @@ helpers.postCommand = function (socket, command, eventName, notification, data,
 		return callback(new Error('[[error:not-logged-in]]'));
 	}
 
-	if (!data || !data.pid || !data.room_id) {
+	if (!data || !data.pid) {
 		return callback(new Error('[[error:invalid-data]]'));
 	}
 
+	if (!data.room_id) {
+		return callback(new Error('[[error:invalid-room-id, ' + data.room_id + ' ]]'));
+	}
+
 	async.waterfall([
 		function (next) {
 			async.parallel({