Fix: Error after sending invitation and joining board:

Exception while invoking method 'login' TypeError: Cannot read property 'loginDisabled' of undefined.
Thanks to nztqa ! Closes #1331

1 files changed, 2 insertions, 1 deletions

diff --git a/server/authentication.js b/server/authentication.js
index 3dd1f478..acc101cc 100644
--- a/server/authentication.js
+++ b/server/authentication.js
@@ -1,7 +1,8 @@
 Meteor.startup(() => {
 
   Accounts.validateLoginAttempt(function (options) {
-    return !options.user.loginDisabled;
+    const user = options.user || {};
+    return !user.loginDisabled;
   });
 
   Authentication = {};