From 989dafb153c927645c1afe93c7184b535a321038 Mon Sep 17 00:00:00 2001
From: Chris Rebert <code@rebertia.com>
Date: Sat, 30 Aug 2014 13:02:05 -0700
Subject: [PATCH] Handle lack of .width and .height from
 getBoundingClientRect() in IE8

Closes #14093
Correction to #14090
Relevant docs: https://developer.mozilla.org/en-US/docs/Web/API/Element.getBoundingClientRect#Browser_compatibility
---
 js/tooltip.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/tooltip.js b/js/tooltip.js
index e730db6e95..93e21e6919 100644
--- a/js/tooltip.js
+++ b/js/tooltip.js
@@ -324,6 +324,10 @@
     var isSvg  = window.SVGElement && el instanceof window.SVGElement
 
     var elRect    = el.getBoundingClientRect()
+    if (elRect.width == null) {
+      // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093
+      elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })
+    }
     var elOffset  = isBody ? { top: 0, left: 0 } : $element.offset()
     var scroll    = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }
     var outerDims = isSvg ? {} : {
-- 
2.47.2