title: 'Error: [$parse:lexerr] Lexer Error: Unexpected next character' on heroku deploy
body: <p>I wrote an angular app using yeoman generator. It works great in development, but after I deploy to heroku and visit a specific page I get this error:</p>
  
  <pre><code>Error: [$parse:lexerr] Lexer Error: Unexpected next character  at columns 0-0 [\] in expression [\].
  http://errors.angularjs.org/1.2.6/$parse/lexerr?p0=Unexpected%20nextharacter%20&amp;p1=s%200-0%20%5B%5C%5D&amp;p2=%5C
      at http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:3:30474
      at Zd.throwError (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:6:14396)
      at Zd.lex (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:6:13696)
      at $d.parse (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:6:16445)
      at http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:5:13197
      at e.parseAs (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:5:23401)
      at Object.e.(anonymous function) [as parseAsResourceUrl] (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:5:23604)
      at http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:6:28873
      at q (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:4:23046)
      at h (http://ang-news.herokuapp.com/scripts/244c37f5.vendor.js:4:19250) 
  </code></pre>
  
  <p><a href="http://docs.angularjs.org/error/$parse/lexerr?p0=Unexpected">This description</a> says the error occurs when an expression has a lexical error.</p>
  
  <p>What's that and why is it only showing up in production? </p>