prevents client freeze on race condition when customUserSettings set

bigbluebutton-html5/imports/ui/components/join-handler/component.jsx

@@ -25,6 +25,7 @@ class JoinHandler extends Component {
     super(props);
     this.fetchToken = this.fetchToken.bind(this);
     this.changeToJoin = this.changeToJoin.bind(this);
+    this.numFetchTokenRetries = 0;
 
     this.state = {
       joined: false,
@@ -40,6 +41,19 @@ class JoinHandler extends Component {
   }
 
   async fetchToken() {
+    if (!Meteor.status().connected) {
+      if (this.numFetchTokenRetries > 9) {
+        logger.error({
+          logCode: 'joinhandler_component_joinroutehandler_error',
+          extraInfo: {
+            numFetchTokenRetries: this.numFetchTokenRetries,
+          },
+        }, 'Meteor was not connected, retry in a few moments');
+      }
+      this.numFetchTokenRetries += 1;
+
+      setTimeout(() => this.fetchToken(), 200);
+    }
     const urlParams = new URLSearchParams(window.location.search);
     const sessionToken = urlParams.get('sessionToken');
 
@@ -102,7 +116,6 @@ class JoinHandler extends Component {
         meetingID, internalUserID, customdata,
       } = resp;
 
-
       return new Promise((resolve) => {
         if (customdata.length) {
           makeCall('addUserSettings', meetingID, internalUserID, customdata).then(r => resolve(r));

bigbluebutton-html5/imports/ui/services/api/index.js

@@ -11,12 +11,12 @@ import { notify } from '/imports/ui/services/notification';
  * @return {Promise}
  */
 export function makeCall(name, ...args) {
-  if (Meteor.status().connected) {
-    check(name, String);
+  check(name, String);
 
-    const { credentials } = Auth;
+  const { credentials } = Auth;
 
-    return new Promise((resolve, reject) => {
+  return new Promise((resolve, reject) => {
+    if (Meteor.status().connected) {
       Meteor.call(name, credentials, ...args, (error, result) => {
         if (error) {
           reject(error);
@@ -24,9 +24,10 @@ export function makeCall(name, ...args) {
 
         resolve(result);
       });
-    });
-  }
-  return null;
+    } else {
+      reject(new Error('Meteor was not connected'));
+    }
+  });
 }
 
 /**