Using 'const' keyword with certain global variables causes mathjax to throw exceptions on render

[applmak]

Here's a simple repro case:

<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS_CHTML"></script>
<script>
const scale = 1.0;
</script>
\(x = 1\)

I would expect this to render x = 1, but instead, I see [Math Processing Error].

[dpvc]

Thanks! Looks like a non-localized variable used in a function. Argh! I thought we had tested for that, but apparently not. I'll fix the reference, and look into why this was missed...

[dpvc]

The issue1806 branch includes the fix for this. I found one other variable that was also global that should not have been. The compressor usually reports these, but for these cases it doesn't. Not sure why.

[dpvc]

==> In testsuite

UI/issue1806.html

[dpvc]

==> Merged