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-rw-r--r--app/assets/javascripts/u2f/authenticate.js2
1 files changed, 2 insertions, 0 deletions
diff --git a/app/assets/javascripts/u2f/authenticate.js b/app/assets/javascripts/u2f/authenticate.js
index cd5280948fd..8821b22477f 100644
--- a/app/assets/javascripts/u2f/authenticate.js
+++ b/app/assets/javascripts/u2f/authenticate.js
@@ -3,6 +3,8 @@
/* global U2FError */
/* global U2FUtil */
+import _ from 'underscore';
+
// Authenticate U2F (universal 2nd factor) devices for users to authenticate with.
//
// State Flow #1: setup -> in_progress -> authenticated -> POST to server