https://logstash.wikimedia.org/app/kibana#/doc/logstash-*/logstash-2020.09.10/clienterror/?id=AXR3Ko-aMQ_08tQaSavm
on https://commons.wikimedia.org/wiki/Category:Coitus_interruptus
Stack trace:
at areSelectedPlayersReady/playersLoaded< <url> at areSelectedPlayersReady <url> at runPlayerSwap/< <url> at dispatch <url> at add/elemData.handle <url> at trigger <url> at trigger/< <url> at each <url> at each <url> at trigger <url> at showPlayer <url> at updateLoadedPlayerInterface <url> at updatePlaybackInterface/< <url> at load/< <url> at fire <url> at fireWith <url> at Deferred/</deferred[tuple[0]] <url> at mediawiki.base.js/</mw.loader.using/< <url> at enqueue <url> at mediawiki.base.js/</mw.loader.using <url> at load <url> at updatePlaybackInterface <url> at setupSourcePlayer <url> at checkPlayerSources/< <url> at doCallbackCheck <url> at mw.addMediaWikiPlayerSupport/< <url> at $.fn.triggerQueueCallback/< <url> at $.fn.triggerQueueCallback <url> at checkPlayerSources <url> at runPlayerSwap/< <url> at $.fn.triggerQueueCallback <url> at runPlayerSwap <url> at addPlayerElement <url> at mw.processEmbedPlayers/< <url> at each <url>