Mathjax3 does not support the syntax for '//' line breaks

Created by: CyNotes

Issue Summary

The MathJAX3 upgrade does not support the syntax for '//' line breaks, so we have to use things like $\displaylines{x = A + B \\ y = b + c}$ to wrap lines, which is not very nice to us. Is there any way to configure MathJAX3 to support '//'?

Technical details:

• MathJax Version: 3.2
• Client OS: (e.g., Mac OS X 10.8.4)
• Browser: (e.g., Chrome 29.0.1547.57)

I am using the following MathJax configuration:

MathJax = {
    tex: {
      inlineMath: [['$', '$']],   // inlineMath: [['$', '$'], ['\\(', '\\)']], // 行内公式选择符
      displayMath: [['$\begin', '\end$'], ['\\[\begin', '\end\\]']],
      processEscapes: true,
      processEnvironments: false,
      packages: ['base', 'ams', 'noerrors', 'noundefined', 'cancel', 'color', 'bbox', 'mhchem']
    },
    options: {
      skipHtmlTags: ['script', 'noscript', 'style', 'textarea', 'pre', 'code', 'a'],
      ignoreHtmlClass: 'comment-content'
    },
    loader: {
      load: ['[tex]/ams', '[tex]/noerrors', '[tex]/noundefined', '[tex]/cancel', '[tex]/color', '[tex]/bbox', '[tex]/mhchem']
    }
};

and loading MathJax via

<script src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>

Supporting information:

Is there any syntax other than '//' that is not supported after upgrading to MathJAX3? Or can you give me a copy of the latex syntax table supported by MathJax? Thank you!