nl_tokens: Checks if value is a host object in IE < 9 .
pl_tokens: function isHostObject$1 ( <mask> ) { // Many host objects are `Object` objects that can coerce to strings // despite having improperly defined `toString` methods. var result = false ; if ( value != null && typeof value . toString != 'function' ) { try { result = ! ! ( value + '' ) ; } catch ( e ) { } } return result ; }