On 23/10/2017 18:11, Maciej Stachowiak wrote: > > Is there any way we can convert MathML to a runtime switch? It seems > like the main consideration is rendering quality given available > fonts, rather than code size. > > Regards, > Maciej > @Maciej:
As I explained, I don't think disabling a HTML5 feature to determine which kind of fallback content will be delivered to the user is a good idea. Authors can provide Web fonts and for very elementary math (e.g. using only simple fractions) you even do not need math fonts at all. Anyway, replying to your question the Tor project also added run-time preferences for MathML and SVG in Gecko last year: https://hg.mozilla.org/mozilla-central/rev/0d48c28cc547 https://hg.mozilla.org/mozilla-central/rev/7b09464eb767 IIRC, they basically move the MathML/SVG elements in "unknown" namespaces so that the MathML/SVG content and layout classes are not used to process them. I believe we could do the same for WebKit. Note that their justification is security (users intentionally disable HTML5 features to "reduce attack surface area") so it's a different use case and that one does not make sense to me. In any cases, I do not think adding an runtime option for MathML/SVG is a prerequisite to remove the build-time option, as the latter was more about reducing binary size/dependencies for web engines developers while the former was about providing more control to users. -- Frédéric Wang - frederic-wang.fr
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