Try to support node

src/data/List.js

@@ -5,11 +5,11 @@
 define(function (require) {
 
     var UNDEFINED = 'undefined';
-    var global = window;
-    var Float64Array = typeof global.Float64Array === UNDEFINED
-        ? Array : global.Float64Array;
-    var Int32Array = typeof global.Int32Array === UNDEFINED
-        ? Array : global.Int32Array;
+    var globalObj = typeof window === 'undefined' ? global : window;
+    var Float64Array = typeof globalObj.Float64Array === UNDEFINED
+        ? Array : globalObj.Float64Array;
+    var Int32Array = typeof globalObj.Int32Array === UNDEFINED
+        ? Array : globalObj.Int32Array;
 
     var dataCtors = {
         'float': Float64Array,

src/echarts.js

@@ -250,7 +250,14 @@ define(function (require) {
                     backgroundColor = 'transparent';
                 }
             }
-            backgroundColor && (this._dom.style.backgroundColor = backgroundColor);
+            if (env.node) {
+                this._zr.configLayer(0, {
+                    clearColor: backgroundColor
+                });
+            }
+            else {
+                backgroundColor && (this._dom.style.backgroundColor = backgroundColor);
+            }
 
             console.time && console.timeEnd('update');
         },

src/model/globalDefault.js

 define(function () {
-    var platform = navigator.platform || '';
+    var platform = '';
+    // Navigator not exists in node
+    if (typeof navigator !== 'undefined') {
+        platform = navigator.platform || '';
+    }
     return {
         // 全图默认背景
         backgroundColor: 'rgba(0,0,0,0)',