handle edge case for credentials where meeting is removed

bigbluebutton-html5/imports/api/common/server/helpers.js

@@ -65,6 +65,7 @@ export const hashFNV32a = (str, asString, seed) => {
 /* eslint-enable */
 
 export const extractCredentials = (credentials) => {
+  if (!credentials) return {};
   const credentialsArray = credentials.split('--');
   const meetingId = credentialsArray[0];
   const requesterUserId = credentialsArray[1];

bigbluebutton-html5/imports/api/external-videos/server/methods/destroyExternalVideo.js

@@ -4,6 +4,7 @@ import { extractCredentials } from '/imports/api/common/server/helpers';
 
 export default function destroyExternalVideo() {
   const { meetingId } = extractCredentials(this.userId);
+  if (!meetingId) return;
   const streamName = `external-videos-${meetingId}`;
 
   if (Meteor.StreamerCentral.instances[streamName]) {