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ui/safe breaks visuals of \longrightleftharpoons #2745

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mhchem opened this issue Jul 25, 2021 · 1 comment
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ui/safe breaks visuals of \longrightleftharpoons #2745

mhchem opened this issue Jul 25, 2021 · 1 comment
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Accepted Issue has been reproduced by MathJax team Fixed v3 v3.2
Milestone
3.2.1

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@mhchem
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mhchem commented Jul 25, 2021

Please have a look at https://jsbin.com/gapezoravi/1/edit?html,js,console,output, where the upper arrow is smaller than the lower one. This is a strange side-effect of loading ui-safe.

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>MathJax</title>
  <script>
    window.MathJax = {
      tex: {
        inlineMath: [['$', '$'], ['\\(', '\\)']],
      },
      loader: {load: ['ui/safe']},
    };
  </script>
  <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg-full.js"></script>
</head>
<body>
    $\longrightleftharpoons$
</body>
</html>

This should solve mhchem/MathJax-mhchem#21.
@dpvc dpvc added Accepted Issue has been reproduced by MathJax team Investigate v3 labels Jul 26, 2021
@dpvc
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dpvc commented Jul 26, 2021

I confirm the result you are getting, but am not sure of there cause and will have to investigate further. Apparently the scriptlevel value that is being set on the upper arrow is being removed. The safe extension does limit the allowed values for scriptevel, but it should allow the value 0, which is what it was set to. I'll have to explore what it happening mere fully.

@dpvc dpvc self-assigned this Jul 26, 2021
dpvc added a commit to mathjax/MathJax-src that referenced this issue Jan 31, 2022
@dpvc
Make safe extension properly handle scriptlevel of 0. (mathjax/MathJa…
77f1a3b 
…x#2745)
@dpvc dpvc mentioned this issue Jan 31, 2022
Merged
@dpvc dpvc added this to the 3.2.1 milestone Jan 31, 2022
dpvc added a commit to mathjax/MathJax-src that referenced this issue Feb 22, 2022
@dpvc
Merge pull request #768 from mathjax/issue2745
0cbf1d4 
Make safe extension properly handle scriptlevel of 0. (mathjax/MathJax#2745)
@dpvc dpvc added Merged Merged into develop branch and removed Ready for Review labels Feb 22, 2022
@dpvc dpvc removed their assignment Jun 1, 2022
@dpvc dpvc added Fixed v3.2 and removed Merged Merged into develop branch labels Jun 1, 2022
@dpvc dpvc closed this as completed Jun 1, 2022
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Accepted Issue has been reproduced by MathJax team Fixed v3 v3.2
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