MathJax Plugin: Tex input textarea should have spellcheck="false"

[poodle]

The textarea used to input the Tex code should have spell checking disabled by specifying spellcheck="false" since spell checking makes absolutely no sense there.

This is especially annoying in Internet Explorer 11 which seems to fix words automatically, for example changing "\binom" to "\Binom", thus breaking the code.

[Jakub Ś]

I didn't get auto correction but I was able to see IE11 underlying words what doesn't make much sense in formula input filed.
IE11 has built-in spell check tool so whoever has it enabled, he will see the effect.

Similar result can be observed in firefox which also checks spelling.