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| -rw-r--r-- | ui/core.js | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ui/core.js b/ui/core.js index d6768441b..5e97e03c0 100644 --- a/ui/core.js +++ b/ui/core.js @@ -63,6 +63,13 @@ $.extend( $.ui, { activeElement = document.body; } + // Support: IE 9 - 11 only + // IE may return null instead of an element + // Interestingly, this only seems to occur when NOT in an iframe + if ( !activeElement ) { + activeElement = document.body; + } + // Support: IE 11 only // IE11 returns a seemingly empty object in some cases when accessing // document.activeElement from an <iframe> |