CMS module have a problem with Bootstrap JS FAQ accordion. Prestashop 1.6.*

[wadhwa016]

I'm working on a CMS page to display company's FAQ. I'm using Bootstrap FAQ accordion to be able to do that, which uses classes like 'data-toggle' , 'data-parent', and 'data-target'. After inserting the source on the CMS creation page and saving it, the aforesaid tags (data-toggle, data-target) automatically get removed from the divs I'd applied these classes to.

 

I think it's a bug in Prestashop 1.6.*. I had no other way but to directly enter it in the database table, which I reckon merchant won't like doing.

 

Any way to fix this. Thanks.