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Maniphest T130967

SVG-Fallback of MathML does not show umlauts in Safari 9.0.3
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Hello,

one of the authors in the project https://de.wikibooks.org/wiki/Mathe_f%C3%BCr_Nicht-Freaks reported a bug when he views the article https://de.wikibooks.org/wiki/Mathe_f%C3%BCr_Nicht-Freaks:_Komposition_stetiger_Funktionen#Motivation with the new MathML mode. He uses Safari version 9.0.3 (11601.4.4) so that he sees the SVG fallback. The umlauts in the formula are not shown as you can see in the following screenshot made by him

Bildschirmfoto 2016-03-25 um 22.35.45.png (593×636 px, 75 KB)

However, I cannot reproduce the problem with my Chromium 49.0.2623.87 on Ubuntu 15.10. I get

Screenshot from 2016-03-25 23-31-59.png (528×456 px, 50 KB)

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Kulla created this task.Mar 25 2016, 10:34 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMar 25 2016, 10:34 PM
Pkra subscribed.Mar 30 2016, 7:48 AM

This seems to be a browser bug. I can reproduce the problem on a different WebKit-based brower (WebKit 2.8.5) but the SVG itself renders fine in that browser.
@Kulla can the user check if, e.g., https://de.wikibooks.org/api/rest_v1/media/math/render/svg/3ae834eb3ea9ab94a47e25a450acd13f7df1690c, shows the Umlaut?

This issue has shown up before for Chrome (but I can't find the issue number) and is probably related to text elements in SVGs when used as background-images.

Kulla added a comment.Mar 30 2016, 4:49 PM

Yes, viewing only the svg he can see the umlaut.

Danny_B added a project: Browser-Support-Apple-Safari.Jun 2 2016, 12:57 AM
Liuxinyu970226 subscribed.Nov 27 2017, 10:28 AM
Pkra mentioned this in T89620: Non-rendering of archaic Greek letters in Math when <text> elements in SVGs are used as background images.Nov 30 2018, 4:58 PM
Pkra added a comment.Nov 30 2018, 5:00 PM

This seems to have finally been fixed upstream, cf. https://bugs.webkit.org/show_bug.cgi?id=191834

Pkra mentioned this in T50032: Math extension doesn't support many languages including Malayalam, Hindi, and Tamil.Nov 30 2018, 5:03 PM
Pkra merged a task: T89620: Non-rendering of archaic Greek letters in Math when <text> elements in SVGs are used as background images.Dec 6 2018, 4:39 PM
Pkra added subscribers: Michael_Hardy, Physikerwelt.

The fix has landed in Safari Tech Preview, cf https://webkit.org/blog/8517/release-notes-for-safari-technology-preview-71/

Pkra added a comment.Dec 6 2018, 4:40 PM

I'm not sure what the closing policy is here. Do we have to wait until the next Safari is released before closing this?

Pkra moved this task from Inbox to Doing on the Math board.Dec 7 2018, 10:56 AM
Kulla added a comment.Dec 8 2018, 8:15 PM

@Pkra Am I right that T50032 already track this issue. If so, this issue can also be closed as a duplicate...

Pkra added a comment.Dec 9 2018, 9:23 PM

@Kulla I think (though I may be wrong) that T50032 is a broader tracking issue that covers various input and output issues around complex scripts.

TheDJ closed this task as Resolved.Dec 10 2018, 10:41 AM
TheDJ claimed this task.
TheDJ edited projects, added Upstream; removed Mathoid.
TheDJ subscribed.

This issue is a known problem with older versions of Google Chrome and Versions of Webkit up to version 12. It is suspected this will be fixed in Safari 12.1 (eta march 2019).
As the upstream browser problem has been fixed, we are closing this ticket, as there is nothing further we can do from our side.

TheDJ moved this task from Backlog to Patch merged upstream on the Upstream board.Dec 10 2018, 10:43 AM
TheDJ added a parent task: T50032: Math extension doesn't support many languages including Malayalam, Hindi, and Tamil.
Liuxinyu970226 unsubscribed.Dec 12 2018, 2:40 PM
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