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Exception in module-execute in module mediawiki.page.watch.ajax:
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Description

on wikidata, as well as other group1 wikis like English Wikisource (the main page with really no wikidata stuff), I am getting a js error.

this especially affects editing on Wikidata, but also other stuff

Exception in module-execute in module mediawiki.page.watch.ajax:
load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:177 TypeError: Cannot set property 'watch' of undefined TypeError: Cannot set property 'watch' of undefined

at https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=ext.echo.i…s%2Csite%7Cschema.NavigationTiming&skin=vector&version=76431d02efea:71:569
at mw.loader.implement.tooltip-ca-unwatch (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=ext.echo.i…s%2Csite%7Cschema.NavigationTiming&skin=vector&version=76431d02efea:72:704)
at Object.<anonymous> (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:162:659)
at jQuery.Callbacks.fire (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:45:122)
at Object.jQuery.Callbacks.self.add [as done] (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:45:656)
at Object.jQuery.extend.Deferred.promise.always (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:46:874)
at mw.loader.runScript (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:162:546)
at mw.loader.checkCssHandles (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:163:319)
at execute (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:164:25)
at handlePending (https://en.wikisource.org/w/load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=vector&version=z8ML1kIu:160:192)

Event Timeline

aude raised the priority of this task from to Needs Triage.
aude updated the task description. (Show Details)
aude added a project: MediaWiki-JavaScript.
aude subscribed.

with debug=true, stuff seems to work

also, I don't always get the error

I've rolled back the deployment of 1.27.0-wmf.1, we need to recreate this on testwiki if possible.

mmodell triaged this task as Unbreak Now! priority.Sep 30 2015, 6:44 PM

can reproduce on test.wikidata on https://test.wikidata.org/wiki/Q22

(though I had no issues earlier today editing the item)

Change 242646 had a related patch set uploaded (by Krinkle):
mediawiki.page.watch.ajax: Add dependency on mediawiki.page.startup

https://gerrit.wikimedia.org/r/242646

Krinkle removed a project: Patch-For-Review.
Krinkle removed a subscriber: gerritbot.

Change 242647 had a related patch set uploaded (by Krinkle):
mediawiki.page.watch.ajax: Add dependency on mediawiki.page.startup

https://gerrit.wikimedia.org/r/242647

Krinkle edited projects, added Regression; removed MediaWiki-General.

Change 242647 merged by jenkins-bot:
mediawiki.page.watch.ajax: Add dependency on mediawiki.page.startup

https://gerrit.wikimedia.org/r/242647

Change 242646 merged by jenkins-bot:
mediawiki.page.watch.ajax: Add dependency on mediawiki.page.startup

https://gerrit.wikimedia.org/r/242646

Change 355256 had a related patch set uploaded (by Fomafix; owner: Fomafix):
[mediawiki/core@master] Restore dependency on module 'mediawiki.page.startup'

https://gerrit.wikimedia.org/r/355256

Change 355256 merged by jenkins-bot:
[mediawiki/core@master] Restore dependency on module 'mediawiki.page.startup'

https://gerrit.wikimedia.org/r/355256

Change 355437 had a related patch set uploaded (by Krinkle; owner: Fomafix):
[mediawiki/core@wmf/1.30.0-wmf.2] Restore dependency on module 'mediawiki.page.startup'

https://gerrit.wikimedia.org/r/355437

Change 355437 merged by jenkins-bot:
[mediawiki/core@wmf/1.30.0-wmf.2] Restore dependency on module 'mediawiki.page.startup'

https://gerrit.wikimedia.org/r/355437