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Merge pull request #7778 from srslafazan/defensive-check-for-mousewheel-handler

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Additional check to ensure pdfViewer object is defined before handleMouseWheel event accesses its property isInPresentationMode
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Tim van der Meij 2016-11-03 22:03:44 +01:00 • committed by GitHub
commit fe3c12bd16
1 changed files with 1 additions and 1 deletions
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web/app.js
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@ -2000,7 +2000,7 @@ function webViewerPageChanging(e) {
var zoomDisabled = false, zoomDisabledTimeout;
function handleMouseWheel(evt) {
var pdfViewer = PDFViewerApplication.pdfViewer;
if (pdfViewer.isInPresentationMode) {
if (!pdfViewer || pdfViewer.isInPresentationMode) {
return;
}