1548527 - Remove "small" "normal" "big" values of mathsize

Status: RESOLVED FIXED

(Core :: MathML, defect)

Description

[Frédéric Wang (:fredw)]

MathML CG decision: https://github.com/mathml-refresh/mathml/issues/7#issuecomment-472790625

Comment 1

[Frédéric Wang (:fredw)]

Attachment: Bug 1548527 - Remove values "small", "normal", "big" values of the mathsize attribute. r=emilio

See https://github.com/mathml-refresh/mathml/issues/7
and https://groups.google.com/forum/#!topic/mozilla.dev.platform/kyB34PjYXek

This commit introduces a new preference option
mathml.mathsize_names.disabled to disable mathsize keyword values. For
now, these are only disabled in Nightly builds.

* test_bug553917.html is updated to check that these values now cause an error
  message to be logged into the console.
* The old test 355548-3.xml checks support for mathsize names and also uses
  several features that are going to be deprecated. So it is just run with
  the proper preference adjustment.
* mathml/relations/css-styling/mathsize-attribute-legacy-values.html passes
  after this change so the failure expectation is removed.
* mathml/relations/css-styling/mathsize-attribute-css-keywords.html is added
  to check that CSS keywords won't be supported when we switch to using the
  CSS parser in the future. This test passes now that we no longer accept
  the "small" keyword.

Comment 2

[Frédéric Wang (:fredw)]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=78db0020b6ba0cb43adabef4c04b7aa2a8f193e9

Comment 3

[Frédéric Wang (:fredw)]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=86ea23a52fc959dc649649d4da2a5ea307dfe57d

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3bfee29aef8e
Remove values "small", "normal", "big" values of the mathsize attribute. r=emilio

Comment 5

[Frédéric Wang (:fredw)]

Polyfill: https://github.com/mathml-refresh/mathml/issues/7#issuecomment-522293734

Comment 6

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/3bfee29aef8e

Comment 7

[Kohei Yoshino [:kohei]]

Posted site compatibility note: https://www.fxsitecompat.dev/en-CA/docs/2019/various-legacy-mathml-features-have-been-deprecated-or-removed/

Comment 8

[Florian Scholz (Open Web Docs)]

Updated:
https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mi#Attributes
https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mn#Attributes
https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mo#Attributes
https://developer.mozilla.org/en-US/docs/Web/MathML/Element/ms#Attributes
https://developer.mozilla.org/en-US/docs/Web/MathML/Element/mtext#Attributes

Please add 'dev-doc-needed' to the bug that removes this in a stable Firefox version.