Bug 109375

Summary:

mfenced can have upper and lower parenthesis split

Product:

WebKit

Reporter:

Ryosuke Niwa <rniwa>

Component:

MathML

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

CC:

davidc, dbarton, fred.wang

Priority:

Keywords:

NeedsReduction

Version:

528+ (Nightly build)

Hardware:

Unspecified

OS:

Unspecified

URL:

http://www.luschny.de/math/euler/EulerianPolynomialsMathML.xhtml

Attachments:

Description	Flags
Screenshot	none

Ryosuke Niwa

Reported 2013-02-10 01:30:00 PST

Open http://www.luschny.de/math/euler/EulerianPolynomialsMathML.xhtml. Look at the fifth equation on WebKit, permutation parenthesis is split in half. It seems like the page's style is somehow adversely affecting MathML rendering code since the equation renders correctly when isolated.

Attachments
Screenshot (43.64 KB, image/png) 2014-06-21 02:49 PDT, Frédéric Wang (:fredw)	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Frédéric Wang (:fredw)

Comment 1 2014-06-21 02:49:29 PDT

Created attachment 233521 [details] Screenshot I think this can be considered a bug in the page. Compare the rendering of the equations at the top (where the default Latin Modern Math font is used) against the equation at the bottom where another font-family is applied to the <math> element (STIXGeneral I think). Gecko tries some additional fallback fonts for the rendering of stretchy operators in order, but in general I think it is wrong for authors to use a font-family on the <math> that does not have math support (e.g. OpenType MATH support).

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