I tracked it down a bit, using the URLs https://www.semantic-mediawiki.org/wiki/Help:Leaflet_format vs. https://www.semantic-mediawiki.org/wiki/Help:Leaflet_format?debug=1
These weird "shadow" pointers are indeed shadows. The bug happens on the "leaflet-shadow-pane" layer. The individual "leaflet-marker-shadow" <img> elements on this layer are supposed to show the image "marker-shadow.png", but for some reason show the image "marker-icon.png" instead. This happens in the actual src="…" argument of the <img> tag, not in CSS. There is really something broken there: src="…/marker-icon.png?2273e")marker-shadow.png" I was not yet able to track it down further. The code your demo https://github.com/JeroenDeDauw/MediaWiki/commit/1713ccde9de7d59634b1a134c58ee3c84ba01642 happens to touch does not look like it should affect HTML, but only CSS. I was not able to find any code in ResourceLoader that messes with <img> tags or src="…" arguments. Best Thiemo _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
