Check property is undefined not just falsey

9 years ago · dfe6458852
1 changed files with 1 additions and 1 deletions
--- a/src/index.js
+++ b/src/index.js
@ -1,6 +1,6 @@
 global.window = require('jsdom').jsdom('<html><body></body></html>').defaultView;
 Object.keys(window).forEach(function(prop) {
-  if(!global[prop]) {
+  if(typeof global[prop] === 'undefined') {
    global[prop] = window[prop];
  }
 });