Change server detection method

package.json

@@ -1,6 +1,6 @@
 {
   "name": "redux-file-upload",
-  "version": "0.0.13",
+  "version": "0.0.15",
   "description": "Redux-friendly file upload made easy",
   "main": "lib/index.js",
   "author": "Blueberry",
@@ -56,6 +56,7 @@
   "dependencies": {
     "bluebird": ">=3",
     "core-decorators": ">=0.12",
+    "detect-node": "^2.0.3",
     "fileapi": "^2.0.21",
     "immutable": ">=3",
     "radium": ">=0.15",

src/FileUpload.react.js

@@ -1,13 +1,14 @@
 import * as actions from './actions';
 import autobind from 'core-decorators/lib/autobind';
 import Component from 'react-pure-render/component';
+import isServer from 'detect-node';
 import Promise from 'bluebird';
 import Radium from 'radium';
 import React, { PropTypes as RPT } from 'react';
 import { connect } from 'react-redux';
 import { filterAllowedFiles, filterDocFiles, filterImageFiles } from './helpers';
 
-const FileAPI = process.env.IS_BROWSER ? Promise.promisifyAll(require('fileapi')) : null;
+const FileAPI = !isServer ? Promise.promisifyAll(require('fileapi')) : null;
 
 @connect(null, actions)
 @Radium
@@ -81,8 +82,8 @@ export default class FileUpload extends Component {
       allowedFileTypes,
       data,
       dropzoneId,
-      uploadFiles,
       identifier,
+      uploadFiles,
       url
      } = this.props;
 

src/actions.js

@@ -1,7 +1,8 @@
+import isServer from 'detect-node';
 import Promise from 'bluebird';
 import { isDoc, isImage } from './helpers';
 
-const FileAPI = process.env.IS_BROWSER ? require('fileapi') : null;
+const FileAPI = !isServer ? require('fileapi') : null;
 
 export const THUMBNAIL_WIDTH = 200;
 export const THUMBNAIL_HEIGHT = 200;