bug fix: sdk not working in isomorphic app

Author: Aamod Pisat

package.json

@@ -1,13 +1,14 @@
 {
   "name": "contentstack",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "description": "The Built.io Contentstack Javascript SDK",
   "homepage": "https://www.built.io/products/contentstack/overview",
   "author": {
     "name": "Built.io Contentstack",
     "url": "https://www.built.io/"
   },
   "main": "dist/node/contentstack.js",
+  "browser": "dist/web/contentstack.js",
   "_id": "contentstack@3.1.1",
   "scripts": {
     "test": "node test.js",
@@ -71,7 +72,9 @@
   },
   "dependencies": {
     "babel-runtime": "^6.23.0",
+    "es6-promise": "^4.1.1",
     "fs": "0.0.1-security",
+    "isomorphic-fetch": "^2.2.1",
     "localStorage": "1.0.3",
     "nodemailer": "4.0.1",
     "path": "^0.12.7",

src/runtime/node/http.js

@@ -1,5 +1,10 @@
-import * as http from 'xmlhttprequest';
+// import * as http from 'xmlhttprequest';
 
-var HTTPRequest = http.XMLHttpRequest;
+// var HTTPRequest = http.XMLHttpRequest;
+ 
+// export default HTTPRequest;
 
-export default HTTPRequest;
+var es6 = require('es6-promise').polyfill();
+    fetch = require('isomorphic-fetch');
+
+export default fetch;

src/runtime/node/when.js

@@ -1,2 +1,2 @@
-export default XMLHttpRequest;
+export default fetch;
 

src/runtime/react-native/http.js

@@ -1,2 +1 @@
-export default XMLHttpRequest;
-
+export default fetch;

src/runtime/react-native/when.js

@@ -5,20 +5,20 @@ var commonConfig = require('./webpack.common.js');
 module.exports = function (options) {
 	return webpackMerge(commonConfig(),{
 		output: {
-		    library: "Contentstack",
-		    libraryTarget:"commonjs2",
-		    path: path.join(__dirname, "../dist/node"),
-		    filename: "contentstack.js"
+			library: "Contentstack",
+			libraryTarget:"commonjs2",
+			path: path.join(__dirname, "../dist/node"),
+			filename: "contentstack.js"
 		},
 		target: "node",
 		resolve: {
 			alias:{
-		      runtime: path.resolve( __dirname,  '../src/runtime/node')
-		    },
+				runtime: path.resolve( __dirname,  '../src/runtime/node')
+			},
 			modules: [
-				'../src', 
-				'../src/runtimes/node',
-				'node_modules', 
+			'../src', 
+			'../src/runtimes/node',
+			'node_modules', 
 			]
 		}
 	});

src/runtime/web/http.js

@@ -19,11 +19,7 @@ module.exports = function (options) {
 				'../src/runtimes/web',
 				'node_modules'
 			]
-		},
-		node: {
-		  fs: "empty",
-		  child_process: 'empty'
-		},
+		}
 	});
 }