[Help-librejs] ReferenceError: type is not defined

[Mohammad Akhlaghi]

Dear LibreJs,

For the manual of GNU Astronomy Utilities, I use MathJax to display TeX 
based mathematics equations in the HTML display, for example:
https://www.gnu.org/software/gnuastro/manual/html_node/Warping-basics.html

I have followed the guidelines of the "Setting Your JavaScript Free" 
webpage bellow:
https://www.gnu.org/software/librejs/free-your-javascript.html

But LibreJS still complains with the error:

Whitelisterror parsing: ReferenceError: type is not defined

Unfortunately, as much as I would like to, I have had no time to learn 
JavaScript. So I would really appreciate it if you could tell me what I 
am doing wrong or not doing.
Thank you very much for all the hard work,
Mohammad