Warning if configuration is set via MathJax.Hub.Config

[stefanspringer]

If the configuration not not set via URL param but via MathJax.Hub.Config (code: MathJax.Hub.Config({config: ["MML_HTMLorMML-full.js"]})), then the warning "MathJax no longer loads a default configuration file; you must specify such files explicitly..." appears nevertheless. It should not appear. This is important for HTML viewers which cannot load resources with URL params.

[dpvc]

You're right, the test for no configuration comes before the loading of the config array. This is because the warning replaced the loading of the old default configuration file, which could include a config array, so needed to be done first. The check can be moved to after the loading of config files now.

In the meantime, if you include a non-empty jax array in your configuration, that will avoid the warning message. E.g.,

MathJax.Hub.Config({
  config: ["MML_HTMLorMML-full.js"],
  jax: ["input/MathML"]
});

should do it.

Can you tell me more about HTML viewers that cannot load resources with URL parameters?

Davide

[stefanspringer]

One HTML viewer that cannot load resources with URL parameters is the HTML-Help viewer from Microsoft for *.chm files.

[dpvc]

Have you been able to get MathJax to work in this setting? There was a recent question sent to the contact list on the MathJax site about this, and I haven't been able to check into it. If you have a working configuration for .CHM files, would you be willing to share it?

[sspringerb]

With jax:... (e.g.: jax: ["input/MathML","output/HTML-CSS","output/NativeMML"]) it was OK. MathJax then renders the formulas within .CHMs without warning (also tested under Windows XP with only IE 6 installed). The MathJax resources are included within the CHM file, but without the bitmap (image) files in the fonts directory because this would blow the CHM considerably. The formulas could even be printed from within the CHM (but not those in subtopics).

[dpvc]

Thanks for the details. I'm glad you have gotten MathJax to work in CHM files.

It is possible to slim the MathJax directory down to reduce the size in this case. For example, since all versions of IE that MathJax supports can handle web-based fonts, there is no need for the image fonts (the largest part of the distribution), so you can remove the MathJax/fonts/HTML-CSS/TeX/png directory, as you have already done. In fact, you can remove the otf and svg directories as well, since IE will only use the EOT fonts. Then you can remove the MathJax/unpacked directory entirely, since you will be running the compressed versions of the files, and you can delete the MathJax/test and MathJax/docs directories completely. If you are only using TeX input (not MathML), then I would recommend using the TeX-AMS_HTML-full configuration file. In that case, you can remove the MathJax/jax/input/MathML and MathJax/jax/output/NativeMML directories, and the MathJax/extensions/mml2jax.js and MathJax/extensions/jsMath2jax.js extensions. You can remove the FontWarnings.js and v1.0-warnings,js extensions as well, and you can delete all the configuration files except the one you are using. If you want to remove every possible file, then you can open the configuration file that you are using and remove the files listed in the MathJax.Ajax.Preloading() call at the top of the file, as those will all be included in the configuration file itself. So you should be able to get things down to a pretty small footprint if you want to.

Davide

[sspringerb]

Thanks for the good support, very nice work!

[dpvc]

A fix for this is included in the hub-updates branch of my fork of MathJax. It should become part of the next release.

[fred-wang]

I've prepared a test

Configuration/Hub/issue163.html

for this issue.

=> In testsuite

[fred-wang]

http://devel.mathjax.org/testing/testsuite/Configuration/Hub/issue163.html

[Rgray]

Stefan,

I am also building a .chm file. My TeX equations are rendered by MathJax in italics. Did you encounter this issue? How did you work around it? In a flat browser (no MSHelp), my equations look fine with the present config.

Thanks,

Reid

[Rgray]

This is what I am using:

MathJax.Hub.Config({tex2jax: { preJax: ["[math]"], inlineMath:
[ ['$','$'], ['(',')']], displayMath: [['[',']'], ['$$','$
$']]}});

<script type="text/javascript" src="http://cdn.mathjax.org/mathjax/ latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">