Empty <math> tag gives UNIQ
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	MarkAHershberger
	Oct 19 2011, 3:40 PM

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From
https://en.wikipedia.org/w/index.php?diff=456329927:

Typing <math></math> gives: UNIQ6e8c92a14d4a1f19-math-00000026-QINU.

Granted an empty <math></math> pair is pointless, but one had somehow got into the wikitext of 'Central limit theorem' — see [[Talk:Central limit theorem#Rubbish in Multivariate]]

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Severity: normal

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Reference: bz31824

Event Timeline

• bzimport raised the priority of this task from to High.Nov 21 2014, 11:56 PM

• bzimport added projects: Math, good first task.

• bzimport set Reference to bz31824.

• bzimport added a subscriber: Unknown Object (MLST).

MarkAHershberger created this task.Oct 19 2011, 3:40 PM

http://en.wikipedia.org/w/index.php?title=Benini_distribution&oldid=418462033

Another example. Seems like the extension should check to see if it has anything before trying to render something.

Tagging easy since that seems like an easy check to make.

Another example:
http://it.wikipedia.org/w/index.php?diff=48247842&oldid=1746395

suhasmonk wrote:

Fix for the empty math tag

I have attached the patch for this bug. It fixes the bug by returning an empty string if the math tag is empty.

Attached:

math_empty.diff481 BDownload

sumanah wrote:

Thanks for the patch, Suhas!

This bug seems to be a regression of bug 8372 "return nothing on empty <math> tags." / r18870 .

Applied with parser tests: https://gerrit.wikimedia.org/r/4422

	F8276: math_empty.diff
	Nov 21 2014, 11:56 PM

Empty <math> tag gives UNIQClosed, ResolvedPublicActions

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Empty <math> tag gives UNIQ
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