Internet Explorer 11, not logged in:
- visit https://www.mediawiki.org/wiki/Help:Multimedia/Media_Viewer/de?uselang=de&debug=true
- click on first image on the right
- black lightbox comes up but then fails and closes
- right side automatic disappearing floating errorbox notifcation with:
Error loading MediaViewer: Die Eigenschaft "getItem" eines undefinierten oder Nullverweises kann nicht abgerufen werden. TypeError: Die Eigenschaft "getItem" eines undefinierten oder Nullverweises kann nicht abgerufen werden. at MetadataPanel (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/ui/mmv.ui.metadataPanel.js:40:3) at init (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.lightboxinterface.js:91:3) at LightboxInterface (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.lightboxinterface.js:35:3) at MultimediaViewer (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.js:112:3) at getViewer (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.bootstrap.js:316:4) at isCSSReady (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.bootstrap.js:106:5) at Anonymous function (https://bits.wikimedia.org/static-1.24wmf2/extensions/MultimediaViewer/resources/mmv/mmv.bootstrap.js:70:4) at fire (https://bits.wikimedia.org/www.mediawiki.org/load.php?debug=true&lang=de&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.triggerQueueCallback%2CloadingSpinner%2CmwEmbedUtil%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20140424T184325Z:974:5) at fireWith (https://bits.wikimedia.org/www.mediawiki.org/load.php?debug=true&lang=de&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.triggerQueueCallback%2CloadingSpinner%2CmwEmbedUtil%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20140424T184325Z:1084:7) at fire (https://bits.wikimedia.org/www.mediawiki.org/load.php?debug=true&lang=de&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.triggerQueueCallback%2CloadingSpinner%2CmwEmbedUtil%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20140424T184325Z:1091:5)
- can be repeated by clicking on the thumb again
Expected Behaviour:
*) It loads and works or
*) Isn't loaded at all and old behaviour (if unsupported browser; see bug 63801 for degrade gracefully)
Version: unspecified
Severity: major