(Separated from T160802)
- JQMIGRATE: jQuery.fn.offset() requires an element connected to a document
- https://jquery.com/upgrade-guide/3.0/#breaking-change-invalid-input-to-the-offset-method
- When: Selecting an image from results in Media insertion dialog. (stack: jQuery.fn.offset / $.fn.position / .. / mw.widgets.MediaSearchWidget.lazyLoadResults)