Fix #14

Author: floatdrop

index.js

@@ -5,7 +5,7 @@ var SETTLED = 'settled';
 var FULFILLED = 'fulfilled';
 var REJECTED = 'rejected';
 var NOOP = function () {};
-var isNode = typeof global.process !== 'undefined' && typeof global.process.emit === 'function';
+var isNode = typeof global !== 'undefined' && typeof global.process !== 'undefined' && typeof global.process.emit === 'function';
 
 var asyncSetTimer = typeof setImmediate === 'undefined' ? setTimeout : setImmediate;
 var asyncQueue = [];