1664975 - mfenced with square bracket is not rendered at all

Status: RESOLVED INVALID

(Core :: MathML, defect)

Description

[Karl Dubost💡 :karlcow]

1. with Firefox enter

data:text/html;charset=utf-8,<math><mfenced open="[" close="]" separators="||||,"><mi>a</mi><mi>b</mi><mi>c</mi><mi>d</mi><mi>e</mi></mfenced></math>

Expected:
square brackets and separators

Actual:
Just the letter.

• Safari displays correctly
• Chrome fails like Firefox

Comment 1

[Karl Dubost💡 :karlcow]

Attachment: firefox top, safari middle, chrome bottom

Comment 2

[Emilio Cobos Álvarez (:emilio)]

Seems invalid per bug 1603773, but probably we should re-enable if we're seeing stuff break in the wild.

Comment 3

[Karl Dubost💡 :karlcow]

Oh thanks. Emilio. I didn't know. cool.
The issue where it was happening is
https://github.com/webcompat/web-bugs/issues/57772

Comment 4

[Emilio Cobos Álvarez (:emilio)]

(In reply to Karl Dubost💡 :karlcow from comment #3)

https://github.com/webcompat/web-bugs/issues/57772

I think we should revert the pref flip for now given this stuff. Fred?

Comment 5

[Frédéric Wang (:fredw)]

I guess we can revert and do a better analysis of how much it is used.

In https://groups.google.com/d/msg/mozilla.dev.platform/SJFrpa-UmQk/neKdPIRiBwAJ Mats referred to the beta channel.