simplify by using fetch-ponyfill

.travis.yml

@@ -1,7 +1,10 @@
 sudo: false
 language: node_js
 node_js:
-  - "0.10"
+  - 4
+  - 6
+  - 8
+  - 9
 before_deploy:
   - npm-prepublish --verbose
 deploy:

README.md

@@ -1,7 +1,7 @@
 isomorphic-fetch [![Build Status](https://travis-ci.org/matthew-andrews/isomorphic-fetch.svg?branch=master)](https://travis-ci.org/matthew-andrews/isomorphic-fetch)
 ================
 
-Fetch for node and Browserify.  Built on top of [GitHub's WHATWG Fetch polyfill](https://github.com/github/fetch).
+Fetch for node and Browserify.  Built on top of [GitHub's WHATWG Fetch polyfill](https://github.com/github/fetch), via [fetch-ponyfill][].
 
 ## Warnings
 

fetch-npm-node.js → index.js

@@ -1,12 +1,12 @@
-"use strict";
-
-var realFetch = require('node-fetch');
-module.exports = function(url, options) {
+var realFetch = require('fetch-ponyfill')({});
+function patchFetch(url, options) {
 	if (/^\/\//.test(url)) {
 		url = 'https:' + url;
 	}
 	return realFetch.call(this, url, options);
-};
+}
+
+module.exports = process.browser ? realFetch.bind(global) : patchFetch;
 
 if (!global.fetch) {
 	global.fetch = module.exports;

package.json

@@ -2,8 +2,6 @@
   "name": "isomorphic-fetch",
   "version": "0.0.0",
   "description": "Isomorphic WHATWG Fetch API, for Node & Browserify",
-  "browser": "fetch-npm-browserify.js",
-  "main": "fetch-npm-node.js",
   "scripts": {
     "files": "find . -name '*.js' ! -path './node_modules/*' ! -path './bower_components/*'",
     "test": "jshint `npm run -s files` && lintspaces -i js-comments -e .editorconfig `npm run -s files` && mocha"
@@ -19,16 +17,15 @@
   },
   "homepage": "https://github.com/matthew-andrews/isomorphic-fetch/issues",
   "dependencies": {
-    "node-fetch": "^1.0.1",
-    "whatwg-fetch": ">=0.10.0"
+    "fetch-ponyfill": "^5.0.1"
   },
   "devDependencies": {
     "chai": "^1.10.0",
     "es6-promise": "^2.0.1",
     "jshint": "^2.5.11",
     "lintspaces-cli": "^0.1.1",
     "mocha": "^2.1.0",
-    "nock": "^0.56.0",
+    "nock": "^9.1.6",
     "npm-prepublish": "^1.0.2"
   }
 }

test/api.test.js

@@ -2,7 +2,7 @@
 "use strict";
 
 require('es6-promise').polyfill();
-require('../fetch-npm-node');
+require('..');
 var expect = require('chai').expect;
 var nock = require('nock');
 var good = 'hello world. 你好世界。';