Cannot get V3 To Render

[Sean Quallen]

Hello all! I'm a VERY novice user of MathJax so I'm probably missing something simple. However, I cannot get the new script (v3.0) to render. I'm using the snippet provided by the documentation:

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>

But nothing is rendering. When I replace with the old script tags everything works just fine:

<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML" async="" type="text/javascript"></script>

These are clearly different script calls but I'm too noob to know what to change here. Any assistance would be appreciated!

[se...@mathspathway.com]

Hi Sean,

Have you also edited the configuration block to match?
The docs at provide a basic example, and I've found the (reasonably long) guide on upgrading useful. 

I used the conversion tool to help with the initial config setup.

After all of that, I found that I had a bunch of tex that "broke" MathJax v3, so it might be worth checking your javascript console to see if any errors appear. 
The error that I was getting was 't.splitText is not a function', I believe this is related to a known bug, and I have worked around that issue by inserting an extra space between any '>' and my MathJax identifiers of '\(' and '\['.

Good luck,

Sean.

[Sean Quallen]

Sean,

Thanks for the response. I've not looked at these documents because I'm not using any advanced functionality and cannot get ANYTHING to render. As an example, this html doc:

<p>Version 2.7:</p>

<p>Basic Text: \(Re\)</p>

<p>Basic Math: \(Re_D = \frac{VD}{\nu}\)</p>

<p>

<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML" async="" type="text/javascript"></script>

</p>

produces:

But changing the script in the following:

<p>Version 3.0:</p>

<p>Basic Text: \(Re\)</p>

<p>Basic Math: \(Re_D = \frac{VD}{\nu}\)</p>

<p>

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6" type="text/javascript"></script>

<script id="MathJax-script" async="" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js" type="text/javascript"></script>

</p>

produces:

This has always 'just worked' with the script tags (I've been using MathJax since v2.5). However I don't see what I'm doing wrong here. Any assistance would be appreciated!

Sean

[Davide Cervone]

You v3 example works fine for me.  Are you seeing any error messages in the browser console?

Davide

On Oct 28, 2019, at 5:25 PM, Sean Quallen <seanq...@gmail.com> wrote:

Sean,

Thanks for the response. I've not looked at these documents because I'm not using any advanced functionality and cannot get ANYTHING to render. As an example, this html doc:

<p>Version 2.7:</p>

<p>Basic Text: \(Re\)</p>

<p>Basic Math: \(Re_D = \frac{VD}{\nu}\)</p>

<p>

<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML" async="" type="text/javascript"></script>

</p>

produces:

<2.7.png>

But changing the script in the following:

<p>Version 3.0:</p>

<p>Basic Text: \(Re\)</p>

<p>Basic Math: \(Re_D = \frac{VD}{\nu}\)</p>

<p>

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6" type="text/javascript"></script>

<script id="MathJax-script" async="" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js" type="text/javascript"></script>

</p>

produces:

<3.0.png>

This has always 'just worked' with the script tags (I've been using MathJax since v2.5). However I don't see what I'm doing wrong here. Any assistance would be appreciated!

Sean

On Monday, October 28, 2019 at 12:54:45 PM UTC-7, se...@mathspathway.com wrote:

Hi Sean,

Have you also edited the configuration block to match?
The docs at provide a basic example, and I've found the (reasonably long) guide on upgrading useful. 

I used the conversion tool to help with the initial config setup.

After all of that, I found that I had a bunch of tex that "broke" MathJax v3, so it might be worth checking your javascript console to see if any errors appear. 
The error that I was getting was 't.splitText is not a function', I believe this is related to a known bug, and I have worked around that issue by inserting an extra space between any '>' and my MathJax identifiers of '\(' and '\['.

Good luck,

Sean.

On Sunday, 27 October 2019 07:23:16 UTC+11, Sean Quallen wrote:

Hello all! I'm a VERY novice user of MathJax so I'm probably missing something simple. However, I cannot get the new script (v3.0) to render. I'm using the snippet provided by the documentation:

<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>

But nothing is rendering. When I replace with the old script tags everything works just fine:

<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML" async="" type="text/javascript"></script>

These are clearly different script calls but I'm too noob to know what to change here. Any assistance would be appreciated!

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<2.7.png><3.0.png>

[Sean Quallen]

Davide,

Thanks for the help. I do, indeed, get a console error in Chrome. I've no idea what to do with this error:

tex-mml-chtml.js:1 Uncaught (in promise) TypeError: Cannot set property 'parent' of undefined at a (tex-mml-chtml.js:1) at u (tex-mml-chtml.js:1) at _ (tex-mml-chtml.js:1) at A (tex-mml-chtml.js:1) at new <anonymous> (prototype.js?v=3500.…-rel.16+7744aa6:392) at Object.node.<computed> [as text] (tex-mml-chtml.js:1) at l.c.create (tex-mml-chtml.js:1) at r.I.compileError (tex-mml-chtml.js:1) at Object.compileError (tex-mml-chtml.js:1) at r.I.compileMath (tex-mml-chtml.js:1)

However, this error does not exist in MS Edge yet I don't get a rendered math font in Edge. Thanks for the help!

[Davide Cervone]

It appears that MathJax is dying within the call that is trying create a "Math input error" message.  

Try adding

<script>

MathJax = {

  options: {

    compileError: function (doc, math, err) {

      console.log(err.message);

      console.log(err.stack)}

  }

}

</script>

before the script that loads MathJax, and see what the console says about that.

Also, can you give the full HTML for the page rather than just this snippet?  It may have something to do with the rest of the page.

Finally, if you are not using MathML input, then it would be more efficient to load tex-chtml.js rather than tex-mml-chtml.js (though this should not be the issue).

Davide

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[Sean Quallen]

Davide,

I added the script, and it gave me this error in the console

Cannot set property '_nodes' of undefined VM821:1 

TypeError: Cannot set property '_nodes' of undefined

    at u (tex-mml-chtml.js:1)

    at p (tex-mml-chtml.js:1)

    at y (tex-mml-chtml.js:1)

    at new <anonymous> (prototype.js?v=3500.0.6-rel.16+7744aa6:392)

    at node.<computed> (tex-mml-chtml.js:1)

    at p.s.create (tex-mml-chtml.js:1)

    at new i (tex-mml-chtml.js:1)

    at new o (tex-mml-chtml.js:1)

    at M.compile (tex-mml-chtml.js:1)

    at e.n.compile (tex-mml-chtml.js:1)

This is being used in an online course management system at a university. I've attached the HTML source document, although I cannot make heads or tails out of it. As I said--complete novice here. Thanks for the help!

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[Davide Cervone]

Well, the page loads a LOT of external scripts (that I don't have access to), so it is quite possible that it is one of those that is causing the problem.  For example, the error stack that you provided indicates that the prototype.js script is handling a "new" call at some point (because the scripts are all compressed, it is difficult to tell exactly where), and it may be that prototype.js has replaced or updated a standard object class and its implementation is not fully compatible with the official version that it has replaced.  According to their web site, the current version of prototype.js is from 2015, and that is quite a while ago in web years, so maybe it is the source of the problem.

The error message indicates that setting the _nodes property of an undefined variable is the issue, but there are only two spots where MathJax sets a _nodes property, and they both look good (they are both "this._nodes = ..." in places where "this" should be defined).  So I'm at a loss to say what it going on.  Without ore complete access to the system, I'm afraid I can't tell you want is wrong.  But my suspicion is that something like prototype.js is causing an incompatibility.

Davide

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<Source.html>

[Sean Quallen]

Thanks Davide. I have zero control over changing that so I'll just stick with using version 2.x as it works fine for my needs. Any idea about how long that CDN will be active for rendering? Will it be shut down in lieu of version 3.x at any time soon?

Sean

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<Source.html>

[Davide Cervone]

We don't control cdnjs, but it is designed to maintain older versions, so my understanding is that these will remain available with no expected end date.

Davide

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