In T271001#12193921, @Jacobolus wrote:

Here are the issues I note at a quick glance of Wikipedia's "Help:Displaying a Formula":

• <math display=block> centers output instead of the long-standing Wikipedia style (left alignment with an indent)
• "\Omega" uses the wrong symbol – shouldn't be italicized
• "\pm" has the wrong vertical position (the minus part is below the baseline) – perhaps uses the wrong font
• "\backslash" is the wrong shape and size, doesn't match "/" – again, perhaps the wrong font
• prime is too far from the letter in x'
• derivative dots in \ddot{x} are too small, hard to read
• spacing around + signs with an overbrace is completely wrong. The example there is \overbrace{ 1+2+\cdots+100 }^{5050}
• Sum in a fraction uses the wrong format (should be inline style by default)
• Lower limits of integrals are universally too far from the integral sign
• Text style binomial coefficient is the wrong size
• all types of ellipsis use the wrong font (not enough space between dots). This is especially noticeable in examples where ellipses are used in a matrix
• There's not enough horizontal whitespace space between the contents of a matrix and the brackets surrounding it
• There's not enough horizontal whitespace after the brace in the 'cases' environment
• The "align" environment has moderately broken whitespace, and "alignat" is completely broken.
• There's not enough space after the equals sign in the math expression "f(x) = {}" which means that a long inline equation broken up into multiple math tags to allow line breaks will have incorrect space between parts
• Lines between cells in the 'array' environment are not rendered at all
• Text-style fractions (e.g. \tfrac12) have substantially incorrect vertical spacing

I'm sure I could come up with a similar number of additional issues if I did a more careful or comprehensive survey

In T271001#12194633, @Christian1985 wrote:

Hello,

in my opinion ticket T382267 is still not fixed completly. I think that fix would be important.

Hey @Jacobolus, I appreciate your concerns and your participation in this discussion.

@Anton.Kokh, @ssingh or @Lydia_Pintscher do we have a sense of how much traffic that is going to bring to the maps servers? Usually I approve ad-hoc small sites that are movement aligned.

The UBN part seem to be fixed. Please re-open in case you think I'm missing anything.

Since this is a feature request for PCS/Summary endpoint, I'm declining because it's not in our plans.

I'm removing from our team board since it's a legacy behaviour that is not broken on Parsoid. It's a low priority and possibly wont-fix unless this is causing high severity issues.

@Krinkle I would appreciate if you can proceed and if you get blocked we can support you.

Thank you so much!

Requesting it as the KR owner for ST6.4 and ST6.6.