diff --git a/app/assets/javascripts/discourse/initializers/auth-complete.js.es6 b/app/assets/javascripts/discourse/initializers/auth-complete.js.es6
index 613d03fd1..779067362 100644
--- a/app/assets/javascripts/discourse/initializers/auth-complete.js.es6
+++ b/app/assets/javascripts/discourse/initializers/auth-complete.js.es6
@@ -5,7 +5,12 @@ export default {
     if (window.location.search.indexOf('authComplete=true') !== -1) {
       const lastAuthResult = localStorage.getItem('lastAuthResult');
       if (lastAuthResult) {
-        Discourse.authenticationComplete(JSON.parse(lastAuthResult));
+        try {
+          Discourse.authenticationComplete(JSON.parse(lastAuthResult));
+        } catch(e) {
+          document.write(`<p>lastAuthResult: ${lastAuthResult}</p>`);
+          document.write(e);
+        }
       }
     }
   }