fix isBrowser detection for electron

CHANGELOG.md

@@ -6,6 +6,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [1.7.3][2017-10-19]
 
+## Fixed
+- `isBrowser` detection for electron
+
+## [1.7.3][2017-10-19]
+
 ### Changed
 - Changing size of a stage will redraw it in synchronous way
 

src/Global.js

@@ -51,7 +51,8 @@
 
     isBrowser:
       typeof window !== 'undefined' &&
-      {}.toString.call(window) === '[object Window]',
+      ({}.toString.call(window) === '[object Window]' ||
+        {}.toString.call(window) === '[object global]'),
 
     // configurations
     enableTrace: false,