Deprecate MathML attributes scriptmize and scriptsizemultiplier #18273
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| - Starting with Gecko 29.0 {{geckoRelease("29.0")}}, the attributes accepted on the `<mstyle>` element have been restricted to those actually used in practice: `id, class, style, href, mathcolor, mathbackground, scriptlevel, displaystyle, scriptsizemultiplier, scriptminsize, dir, mathsize, mathvariant, fontfamily, fontweight, fontstyle, fontsize, color, background`. | ||
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| - Starting with Gecko 103.0 {{geckoRelease("103.0")}}, support for attributes `scriptsizemultiplier` and `scriptminsize` has been removed. |
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Shouldn't we have mdn/browser-compat-data for this?
It would be nice to add a Specifications and a Browser_compatibility page like we do for the rest of MDN.
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I guess yes, probably.... But I guess there is a lot of of MathML data to update on mdn/browser-compat-data, this PR is just a first step to make clear these are deprecated...
(Incidentally, I don't know whether we can do "supported in XXX under a flag" or "removed in XXX since version YYY" which we will probably need)
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So it looks like https://github.com/mdn/browser-compat-data/blob/main/mathml/elements/mstyle.json has some data already, let's add the section
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mmh, and Specifications and a Browser_compatibility sections are already present above actually (try to show more context). These Gecko-specific notes are very long...
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@queengooborg I think these notes (https://pr18273.content.dev.mdn.mozit.cloud/en-US/docs/Web/MathML/Element/mstyle#gecko-specific_notes ) should be in bcd. Any advice on how to format/list them?
@fred-wang We try to avoid notes in Browser compat section nowadays (we don't succeed at 100% but we did some progress…)
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Yes, browser compatibility data should definitely be placed in BCD rather than on the pages itself. There is a lot of information in these notes, some of which could be applied to existing subfeatures (scriptminsize and scriptsizemultiplier). I think that some of these should be split into multiple statements with partial_implementation in BCD, for example the first note about lack of complete implementation before Firefox 6.
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I removed the notes from MDN and open mdn/browser-compat-data#17043 for BCD.
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Also remove Gecko-specific notes, moved to browser-compat-data.
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Summary
Deprecate MathML attributes scriptmize and scriptsizemultiplier and document change in Firefox 103.
Motivation
These attributes have been removed from Firefox 103, not implemented in any other browsers and not part of MathML Core.
Supporting details
https://bugzilla.mozilla.org/show_bug.cgi?id=1772697
https://w3c.github.io/mathml-core/#style-change-mstyle
Related issues
Metadata