Last modified: 2014-11-10 22:45:00 UTC

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Bug 73173 - Incorrect symbols MathML in chromiun
Incorrect symbols MathML in chromiun
Status: UNCONFIRMED
Product: Mathoid
Classification: Unclassified
General/Unknown (Other open bugs)
unspecified
All All
: Unprioritized normal
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2014-11-08 14:09 UTC by Sunpriat
Modified: 2014-11-10 22:45 UTC (History)
5 users (show)

See Also:
Web browser: Google Chrome
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments
image1 Firefox (MathML) (15.89 KB, image/png)
2014-11-08 14:09 UTC, Sunpriat
Details
image2 Firefox/Chromium (PNG) (33.02 KB, image/png)
2014-11-08 14:10 UTC, Sunpriat
Details
image3 Chromium(MathML) (31.62 KB, image/png)
2014-11-08 14:11 UTC, Sunpriat
Details

Description Sunpriat 2014-11-08 14:09:30 UTC
Created attachment 17079 [details]
image1 Firefox (MathML)

math \Coppa, \coppa, \Koppa, \koppa, \Stigma, \stigma, \S, \P
in

in Firefox (MathML):
Ϙ , ϙ , Ϟ , ϟ , Ϛ , ϛ , § , ¶
see image1

in Firefox & Chromium with settings "PNG images" (or when not loggin):
see image2

in Chromium (MathML):

see image3
Comment 1 Sunpriat 2014-11-08 14:10:31 UTC
Created attachment 17080 [details]
image2 Firefox/Chromium (PNG)
Comment 2 Sunpriat 2014-11-08 14:11:06 UTC
Created attachment 17081 [details]
image3 Chromium(MathML)
Comment 3 Frédéric Wang 2014-11-08 14:15:42 UTC
I'm assuming this is due to the use of the MathJax fonts for the SVG conversion, so I'm moving this to Mathoid.
Comment 4 Peter Krautzberger 2014-11-10 22:25:18 UTC
I can reproduce this; see https://en.wikipedia.org/wiki/User:Pkra/sandbox. 

However, I don't think it's the MathJax fonts. MathJax will always fallback to regular Unicode text when it encounters a character that the fonts do not cover.

You can see that this works in the SVG generated by MathJax at https://en.wikipedia.org/w/index.php?title=Special:MathShowImage&hash=e9393d9bafb58f58b1a47a1c908d2b01&mode=5.

This looks like another problem related to embedding the SVG in the page.
Comment 5 Peter Krautzberger 2014-11-10 22:27:06 UTC
PS: It works fine on IE11. Perhaps it's a bug in Chrome.
Comment 6 Frédéric Wang 2014-11-10 22:33:06 UTC
OK, well so server-side it's a problem with the MathJax fonts (for not having the appropriate glyphs to do proper SVG conversion) and client-side it's a problem with the config (for lacking fonts to display the <text> fallback). So we can either fix that by changing the font server-side or by adding Web fonts client-side.
Comment 7 Peter Krautzberger 2014-11-10 22:45:00 UTC
> So we can either fix that by changing the font server-side 

Yes.

> or by adding Web fonts client-side.

I don't think that will help. It looks like a Chrome bug.

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