Only get channels and posts on WebSocket connect if team is set (#3684)

webapp/actions/websocket_actions.jsx

@@ -62,8 +62,10 @@ export function getStatuses() {
 }
 
 function handleReconnect() {
-    AsyncClient.getChannels();
+    if (Client.teamId) {
-    AsyncClient.getPosts(ChannelStore.getCurrentId());
+        AsyncClient.getChannels();
+        AsyncClient.getPosts(ChannelStore.getCurrentId());
+    }
     getStatuses();
     ErrorStore.clearLastError();
     ErrorStore.emitChange();

webapp/client/client.jsx

@@ -40,7 +40,7 @@ export default class Client {
     }
 
     getTeamId() {
-        if (this.teamId === '') {
+        if (!this.teamId) {
             console.error('You are trying to use a route that requires a team_id, but you have not called setTeamId() in client.jsx'); // eslint-disable-line no-console
         }