Merge pull request #14573 from twbs/indom-check-cross-doc

Make inDom check of tooltip cross document compatible

js/tooltip.js

@@ -152,7 +152,7 @@
     if (this.hasContent() && this.enabled) {
       this.$element.trigger(e)
 
-      var inDom = $.contains(document.documentElement, this.$element[0])
+      var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])
       if (e.isDefaultPrevented() || !inDom) return
       var that = this