Merge pull request #25 from chenxsan/fix-add-undefined

Move Context to Provider

Author: staylor

src/Context.js

@@ -1,10 +1,13 @@
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
-import Context from './Context';
 import mapStateOnServer from './server';
 
 /* eslint-disable react/prop-types */
 
+const defaultValue = {};
+
+export const Context = React.createContext(defaultValue);
+
 export const providerShape = PropTypes.shape({
   setHelmet: PropTypes.func,
   helmetInstances: PropTypes.shape({

src/Provider.js

@@ -2,7 +2,7 @@ import React, { Component } from 'react';
 import PropTypes from 'prop-types';
 import fastCompare from 'react-fast-compare';
 import invariant from 'invariant';
-import Context from './Context';
+import { Context } from './Provider';
 import Dispatcher from './Dispatcher';
 import { TAG_NAMES, VALID_TAG_NAMES, HTML_TAG_MAP } from './constants';