fix(polls) limit maximum amount of answers

react/features/polls/middleware.ts

@@ -18,6 +18,11 @@ import {
 } from './constants';
 import { IAnswer, IPoll, IPollData } from './types';
 
+/**
+ * The maximum number of answers a poll can have.
+ */
+const MAX_ANSWERS = 32;
+
 /**
  * Set up state change listener to perform maintenance tasks when the conference
  * is left or failed, e.g. Clear messages or close the chat modal if it's left
@@ -146,7 +151,7 @@ function _handleReceivePollsMessage(data: any, dispatch: IStore['dispatch'], get
                     name: answer,
                     voters: []
                 };
-            }),
+            }).slice(MAX_ANSWERS),
             saved: false,
             editing: false
         };
@@ -167,7 +172,7 @@ function _handleReceivePollsMessage(data: any, dispatch: IStore['dispatch'], get
         const receivedAnswer: IAnswer = {
             voterId,
             pollId,
-            answers
+            answers: answers.slice(MAX_ANSWERS)
         };
 
         dispatch(receiveAnswer(pollId, receivedAnswer));