I'm getting Uncaught SyntaxError: Invalid regular expression: /[Ö‘-Û¯Ûº-ࣿâ€�-��-�ï¬-ï·¿ï¹°-ﻼ]/: Range out of order in character class but when I click on the browser exception bidi.js:276 it point's to HTML file. Bidi is a indirect dep from fulcro and it's on 2.1.5 I have no idea from where it error come from.

It's not from bidi/bidi. it's from goog.i18n.bidi

Oh I will bum my closure compiler

@souenzzo this is likely caused by an invalid charset encoding set in your html (or none set at all)

try <meta charset="utf-8"> or Content-Type: text/html; charset=utf-8 if you control the server side