Uncaught TypeError: Cannot read property 'marktype' of undefined in CanvasHandler.pick() / undefined
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	• Niedzielski
	Jul 16 2020, 1:25 PM

Description

There are currently 22 occurrences of the following error:

Uncaught TypeError: Cannot read property 'marktype' of undefined
at CanvasHandler.prototype.pick  https://www.mediawiki.org/w/load.php?lang=fr&modules=ext.graph.vega2%7Cjquery&skin=vector&version=1l2n8:470:276
at CanvasHandler.prototype.pickEvent  https://www.mediawiki.org/w/load.php?lang=fr&modules=ext.graph.vega2%7Cjquery&skin=vector&version=1l2n8:470:105
at CanvasHandler.mousemove  https://www.mediawiki.org/w/load.php?lang=fr&modules=ext.graph.vega2%7Cjquery&skin=vector&version=1l2n8:468:446
at HTMLCanvasElement.<anonymous>  https://www.mediawiki.org/w/load.php?lang=fr&modules=ext.graph.vega2%7Cjquery&skin=vector&version=1l2n8:467:854

I can reproduce by visiting the page in the log on Firefox v78.0.1 for Ubuntu v20.04.

Related Objects

Mentioned Here: T260542: Drop support for Vega 1.5
T270404: Validate graph data or inputs and present feedback to the editor/reader rather than rely on production error logs
T269308: Uncaught TypeError: Cannot read property 'items' of null / TypeError: null is not an object (evaluating 'view.model().scene().items')

Event Timeline

• Niedzielski created this task.Jul 16 2020, 1:25 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJul 16 2020, 1:25 PM

Jdlrobson renamed this task from Uncaught TypeError: Cannot read property 'marktype' of undefined in CanvasHandler.pick() to Uncaught TypeError: Cannot read property 'marktype' of undefined in CanvasHandler.pick() / undefined.Oct 8 2020, 12:43 AM

Jdlrobson added a project: Wikimedia-production-error.

Umherirrender added a project: JavaScript.Oct 13 2020, 8:17 PM

Krinkle moved this task from Untriaged to Older on the Wikimedia-production-error board.Oct 14 2020, 6:59 PM

This is now in the top 10 errors on production wikis, evidently because of certain graphs on popular pages. See related T269308.

https://tr.wikipedia.org/wiki/COVID-19_pandemisi
https://logstash.wikimedia.org/app/kibana#/doc/logstash-*/logstash-2020.12.02/clienterror/?id=AXYlmgfoISDMpKoGijer

Jdlrobson added a project: covid-19.Dec 3 2020, 3:24 AM

Volume has decreased so logspam levels are now lower.

This is no longer a production error as it is caught and instead errors to the console, but the error still exists.

Reproducible on https://en.wikipedia.org/wiki/COVID-19_pandemic_in_Delhi#Statistics

Jdlrobson added a project: Release-Engineering-Team (Logspam).Mar 25 2021, 4:28 PM

I fixed various instances of this manually, but this remains a problem until T270404 is taken care of.

thcipriani edited projects, added Unstewarded-production-error; removed Release-Engineering-Team (Logspam).Aug 24 2021, 10:18 PM

Iniquity moved this task from Backlog to To verify post rewrite on the MediaWiki-extensions-Graph board.Apr 7 2023, 12:48 PM

Jdlrobson triaged this task as Low priority.Apr 25 2023, 10:08 PM

After fix of T260542 I would assume this old production error cannot longer happen. Would be nice to get fresh stats from logs.

Umherirrender unsubscribed.Jul 12 2023, 8:05 PM

Uncaught TypeError: Cannot read property 'marktype' of undefined in CanvasHandler.pick() / undefinedOpen, LowPublicActions

Description

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Uncaught TypeError: Cannot read property 'marktype' of undefined in CanvasHandler.pick() / undefined
Open, LowPublic
Actions