Uncaught SyntaxError: Invalid regular expression: /(^|\.)fb(\.|$)/: Stack overflow

Uncaught SyntaxError: Invalid regular expression: /(^|.)fb(.|$)/: Stack overflowToday I was trying to use fancybox with jQuery and bootstrap while doing some website work. While trying to do some looping functions, like creating a gallery I started getting this error in the console:

Uncaught SyntaxError: Invalid regular expression: /(^|\.)fb(\.|$)/: Stack overflow

I did a lot of searching and found that error is typically caused by things like javascript variables that contain invisible characters like \u200B and maybe the ^M windows line ending.

After searching through a lot of my files for the site I realized the problem was in one of the libraries I was using: Bootstrap

As far as I can tell there is an issue in Bootstrap version 2.3.0 that causes this. I switched from using this Bootstrap url (2.3.0):

netdna.bootstrapcdn.com/twitter-bootstrap/2.3.0/js/bootstrap.min.js

To instead using 2.2.2 which is at:

netdna.bootstrapcdn.com/twitter-bootstrap/2.2.2/js/bootstrap.min.js

The error went away and fancybox / fancyapps started working just fine again.

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