nl_tokens: Given an Error object return a formatted Array based on IE s stack string .
pl_tokens: function ( e ) { var lineRE = / ^.*at (\w+) \(([^\)]+)\)$ / gm ; return e . stack . replace ( / at Anonymous function  / gm , '{anonymous}()@' ) . replace ( / ^(?=\w+Error\:).*$\n / m , '' ) . replace ( lineRE , '$1@$2' ) . <mask> ( '\n' ) ; }