nl_tokens: Fatal errors that should trigger the fallback UI and halt execution by throwing an exception .
pl_tokens: function error ( msg ) { // If multiple arguments were passed, pass them all to the log function. if ( arguments . length > 1 ) { var logArguments = [ 'Error:' ] ; logArguments . push . apply ( logArguments , arguments ) ; console . log . apply ( console , logArguments ) ; // Join the arguments into a single string for the lines below. <mask> = [ ] . join . call ( arguments , ' ' ) ; } else { console . log ( 'Error: ' + msg ) ; } console . log ( backtrace ( ) ) ; UnsupportedManager . notify ( UNSUPPORTED_FEATURES . unknown ) ; throw new Error ( msg ) ; }