From d600831a153c9930c3fe4e618b187951abc7b43b Mon Sep 17 00:00:00 2001
From: Jacob Thornton <jacobthornton@gmail.com>
Date: Sat, 14 Nov 2015 20:35:10 -0800
Subject: add explicit error for lack of tether in tooltips - fixes #17273

---
 js/src/tooltip.js | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'js/src')

diff --git a/js/src/tooltip.js b/js/src/tooltip.js
index 30c2f7165..173ee592e 100644
--- a/js/src/tooltip.js
+++ b/js/src/tooltip.js
@@ -12,6 +12,14 @@ import Util from './util'
 
 const Tooltip = (($) => {
 
+  /**
+   * Check for Tether dependency
+   * Tether - http://github.hubspot.com/tether/
+   */
+  if (!window.Tether) {
+    throw new Error('Bootstrap tooltips require Tether (http://github.hubspot.com/tether/)')
+  }
+
 
   /**
    * ------------------------------------------------------------------------
-- 
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