Flatten dependencies and add dev deps to git

8 files changed, 705 insertions, 0 deletions

diff --git a/node_modules/http-proxy-agent/.travis.yml b/node_modules/http-proxy-agent/.travis.yml
new file mode 100644
index 000000000..805d3d50d
--- /dev/null
+++ b/node_modules/http-proxy-agent/.travis.yml
@@ -0,0 +1,22 @@
+sudo: false
+
+language: node_js
+
+node_js:
+  - "4"
+  - "5"
+  - "6"
+  - "7"
+  - "8"
+
+install:
+  - PATH="`npm bin`:`npm bin -g`:$PATH"
+  # Install dependencies and build
+  - npm install
+
+script:
+  # Output useful info for debugging
+  - node --version
+  - npm --version
+  # Run tests
+  - npm test
diff --git a/node_modules/http-proxy-agent/History.md b/node_modules/http-proxy-agent/History.md
new file mode 100644
index 000000000..7e3e1e783
--- /dev/null
+++ b/node_modules/http-proxy-agent/History.md
@@ -0,0 +1,101 @@
+
+2.1.0 / 2018-03-03
+==================
+
+  * Add "engines" to package.json
+  * Use `Buffer.from()`
+  * Update package.json - outdated debug version (#7)
+
+2.0.0 / 2017-06-27
+==================
+
+  * drop support for Node.js < v4
+  * update "mocha" to v3
+  * update to "agent-base" v4
+  * rename http-proxy-agent.js to index.js
+  * remove `extend` dependency
+  * test Node.js 4, 5, 6, 7 and 8 on Travis-CI
+
+1.0.0 / 2015-07-10
+==================
+
+  * http-proxy-agent: use %o debug() formatter
+  * http-proxy-agent: remove `defaults` merging logic
+  * package: update "agent-base" to v2
+  * test: add an assert() call
+  * test: use ssl-cert-snakeoil self-signed SSL certs
+  * README: add note about node-https-proxy-agent
+
+0.2.7 / 2015-07-06
+==================
+
+  * travis: ensure latest npm before testing
+  * travis: test node v0.8, v0.10, and v0.12
+  * README: use SVG for Travis-CI badge
+  * package: update "extend" to v3
+  * package: update "mocha" to v2
+  * package: update "debug" to v2
+
+0.2.6 / 2014-06-11
+==================
+
+  * package: update "debug" to v1.0.0
+
+0.2.5 / 2014-04-09
+==================
+
+  * package: update outdated deps
+
+0.2.4 / 2014-01-12
+==================
+
+  * http-proxy-agent: fix using the agent after the first tick of creating the ClientRequest
+  * http-proxy-agent: use "debug" module
+  * History: fix whitespace
+
+0.2.3 / 2013-11-18
+==================
+
+  * https-proxy-agent: allow "https" without trailing colon
+
+0.2.2 / 2013-11-16
+==================
+
+  * http-proxy-agent: delete the `port` if it matches default port
+  * http-proxy-agent: don't mix in the `proxy` opts to the endpoint opts
+  * http-proxy-agent: delete `pathname` from the proxy opts as well
+
+0.2.1 / 2013-10-28
+==================
+
+  * http-proxy-agent: properly proxy the query-string on request URLs (GH-1)
+
+0.2.0 / 2013-09-16
+==================
+
+  * http-proxy-agent: update to `agent-base` v1.0.0 API
+  * http-proxy-agent: rename `secure` option to `secureProxy`
+  * http-proxy-agent: default the "port" to 80 if not set
+  * http-proxy-agent: use "extend" module
+  * test: refactor tests
+  * test: add 407 auth test
+  * test: add bad proxy info test
+  * test: add "secureProxy" option tests
+
+0.1.0 / 2013-09-03
+==================
+
+  * Add initial "Proxy-Authorization" Basic authentication support
+
+0.0.2 / 2013-07-11
+==================
+
+  * test: make tests pass, ensure valid IP addresses are returned
+  * test: add tests
+  * throw an Error when no proxy info is given
+  * add support for passing options to net/tls .connect()
+
+0.0.1 / 2013-07-09
+==================
+
+  * Initial release
diff --git a/node_modules/http-proxy-agent/README.md b/node_modules/http-proxy-agent/README.md
new file mode 100644
index 000000000..4f1fc372b
--- /dev/null
+++ b/node_modules/http-proxy-agent/README.md
@@ -0,0 +1,74 @@
+http-proxy-agent
+================
+### An HTTP(s) proxy `http.Agent` implementation for HTTP
+[![Build Status](https://travis-ci.org/TooTallNate/node-http-proxy-agent.svg?branch=master)](https://travis-ci.org/TooTallNate/node-http-proxy-agent)
+
+This module provides an `http.Agent` implementation that connects to a specified
+HTTP or HTTPS proxy server, and can be used with the built-in `http` module.
+
+__Note:__ For HTTP proxy usage with the `https` module, check out
+[`node-https-proxy-agent`](https://github.com/TooTallNate/node-https-proxy-agent).
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install http-proxy-agent
+```
+
+
+Example
+-------
+
+``` js
+var url = require('url');
+var http = require('http');
+var HttpProxyAgent = require('http-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// HTTP endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'http://nodejs.org/api/';
+console.log('attempting to GET %j', endpoint);
+var opts = url.parse(endpoint);
+
+// create an instance of the `HttpProxyAgent` class with the proxy server information
+var agent = new HttpProxyAgent(proxy);
+opts.agent = agent;
+
+http.get(opts, function (res) {
+  console.log('"response" event!', res.headers);
+  res.pipe(process.stdout);
+});
+```
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich &lt;nathan@tootallnate.net&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/http-proxy-agent/index.js b/node_modules/http-proxy-agent/index.js
new file mode 100644
index 000000000..f90a5297c
--- /dev/null
+++ b/node_modules/http-proxy-agent/index.js
@@ -0,0 +1,111 @@
+
+/**
+ * Module dependencies.
+ */
+
+var net = require('net');
+var tls = require('tls');
+var url = require('url');
+var Agent = require('agent-base');
+var inherits = require('util').inherits;
+var debug = require('debug')('http-proxy-agent');
+
+/**
+ * Module exports.
+ */
+
+module.exports = HttpProxyAgent;
+
+/**
+ * The `HttpProxyAgent` implements an HTTP Agent subclass that connects to the
+ * specified "HTTP proxy server" in order to proxy HTTP requests.
+ *
+ * @api public
+ */
+
+function HttpProxyAgent (opts) {
+  if (!(this instanceof HttpProxyAgent)) return new HttpProxyAgent(opts);
+  if ('string' == typeof opts) opts = url.parse(opts);
+  if (!opts) throw new Error('an HTTP(S) proxy server `host` and `port` must be specified!');
+  debug('creating new HttpProxyAgent instance: %o', opts);
+  Agent.call(this, opts);
+
+  var proxy = Object.assign({}, opts);
+
+  // if `true`, then connect to the proxy server over TLS. defaults to `false`.
+  this.secureProxy = proxy.protocol ? /^https:?$/i.test(proxy.protocol) : false;
+
+  // prefer `hostname` over `host`, and set the `port` if needed
+  proxy.host = proxy.hostname || proxy.host;
+  proxy.port = +proxy.port || (this.secureProxy ? 443 : 80);
+
+  if (proxy.host && proxy.path) {
+    // if both a `host` and `path` are specified then it's most likely the
+    // result of a `url.parse()` call... we need to remove the `path` portion so
+    // that `net.connect()` doesn't attempt to open that as a unix socket file.
+    delete proxy.path;
+    delete proxy.pathname;
+  }
+
+  this.proxy = proxy;
+}
+inherits(HttpProxyAgent, Agent);
+
+/**
+ * Called when the node-core HTTP client library is creating a new HTTP request.
+ *
+ * @api public
+ */
+
+HttpProxyAgent.prototype.callback = function connect (req, opts, fn) {
+  var proxy = this.proxy;
+
+  // change the `http.ClientRequest` instance's "path" field
+  // to the absolute path of the URL that will be requested
+  var parsed = url.parse(req.path);
+  if (null == parsed.protocol) parsed.protocol = 'http:';
+  if (null == parsed.hostname) parsed.hostname = opts.hostname || opts.host;
+  if (null == parsed.port) parsed.port = opts.port;
+  if (parsed.port == 80) {
+    // if port is 80, then we can remove the port so that the
+    // ":80" portion is not on the produced URL
+    delete parsed.port;
+  }
+  var absolute = url.format(parsed);
+  req.path = absolute;
+
+  // inject the `Proxy-Authorization` header if necessary
+  if (proxy.auth) {
+    req.setHeader(
+      'Proxy-Authorization',
+      'Basic ' + Buffer.from(proxy.auth).toString('base64')
+    );
+  }
+
+  // create a socket connection to the proxy server
+  var socket;
+  if (this.secureProxy) {
+    socket = tls.connect(proxy);
+  } else {
+    socket = net.connect(proxy);
+  }
+
+  // at this point, the http ClientRequest's internal `_header` field might have
+  // already been set. If this is the case then we'll need to re-generate the
+  // string since we just changed the `req.path`
+  if (req._header) {
+    debug('regenerating stored HTTP header string for request');
+    req._header = null;
+    req._implicitHeader();
+    if (req.output && req.output.length > 0) {
+      debug('patching connection write() output buffer with updated header');
+      // the _header has already been queued to be written to the socket
+      var first = req.output[0];
+      var endOfHeaders = first.indexOf('\r\n\r\n') + 4;
+      req.output[0] = req._header + first.substring(endOfHeaders);
+      debug('output buffer: %o', req.output);
+    }
+  }
+
+  fn(null, socket);
+};
diff --git a/node_modules/http-proxy-agent/package.json b/node_modules/http-proxy-agent/package.json
new file mode 100644
index 000000000..99e28fdc6
--- /dev/null
+++ b/node_modules/http-proxy-agent/package.json
@@ -0,0 +1,67 @@
+{
+  "_from": "http-proxy-agent@^2.1.0",
+  "_id": "http-proxy-agent@2.1.0",
+  "_inBundle": false,
+  "_integrity": "sha512-qwHbBLV7WviBl0rQsOzH6o5lwyOIvwp/BdFnvVxXORldu5TmjFfjzBcWUWS5kWAZhmv+JtiDhSuQCp4sBfbIgg==",
+  "_location": "/http-proxy-agent",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "http-proxy-agent@^2.1.0",
+    "name": "http-proxy-agent",
+    "escapedName": "http-proxy-agent",
+    "rawSpec": "^2.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^2.1.0"
+  },
+  "_requiredBy": [
+    "/make-fetch-happen",
+    "/npm-profile/make-fetch-happen",
+    "/npm-registry-fetch/make-fetch-happen"
+  ],
+  "_resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz",
+  "_shasum": "e4821beef5b2142a2026bd73926fe537631c5405",
+  "_spec": "http-proxy-agent@^2.1.0",
+  "_where": "/Users/rebecca/code/npm/node_modules/make-fetch-happen",
+  "author": {
+    "name": "Nathan Rajlich",
+    "email": "nathan@tootallnate.net",
+    "url": "http://n8.io/"
+  },
+  "bugs": {
+    "url": "https://github.com/TooTallNate/node-http-proxy-agent/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "agent-base": "4",
+    "debug": "3.1.0"
+  },
+  "deprecated": false,
+  "description": "An HTTP(s) proxy `http.Agent` implementation for HTTP",
+  "devDependencies": {
+    "mocha": "3",
+    "proxy": "~0.2.3"
+  },
+  "engines": {
+    "node": ">= 4.5.0"
+  },
+  "homepage": "https://github.com/TooTallNate/node-http-proxy-agent#readme",
+  "keywords": [
+    "http",
+    "proxy",
+    "endpoint",
+    "agent"
+  ],
+  "license": "MIT",
+  "main": "./index.js",
+  "name": "http-proxy-agent",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TooTallNate/node-http-proxy-agent.git"
+  },
+  "scripts": {
+    "test": "mocha --reporter spec"
+  },
+  "version": "2.1.0"
+}
diff --git a/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.key b/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.key
new file mode 100644
index 000000000..fd1250122
--- /dev/null
+++ b/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.key
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.pem b/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.pem
new file mode 100644
index 000000000..b115a5e91
--- /dev/null
+++ b/node_modules/http-proxy-agent/test/ssl-cert-snakeoil.pem
@@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/node_modules/http-proxy-agent/test/test.js b/node_modules/http-proxy-agent/test/test.js
new file mode 100644
index 000000000..cc320c7fc
--- /dev/null
+++ b/node_modules/http-proxy-agent/test/test.js
@@ -0,0 +1,303 @@
+
+/**
+ * Module dependencies.
+ */
+
+var fs = require('fs');
+var url = require('url');
+var http = require('http');
+var https = require('https');
+var assert = require('assert');
+var Proxy = require('proxy');
+var HttpProxyAgent = require('../');
+
+describe('HttpProxyAgent', function () {
+
+  var server;
+  var serverPort;
+
+  var proxy;
+  var proxyPort;
+
+  var sslProxy;
+  var sslProxyPort;
+
+  before(function (done) {
+    // setup HTTP proxy server
+    proxy = Proxy();
+    proxy.listen(function () {
+      proxyPort = proxy.address().port;
+      done();
+    });
+  });
+
+  before(function (done) {
+    // setup target HTTP server
+    server = http.createServer();
+    server.listen(function () {
+      serverPort = server.address().port;
+      done();
+    });
+  });
+
+  before(function (done) {
+    // setup SSL HTTP proxy server
+    var options = {
+      key: fs.readFileSync(__dirname + '/ssl-cert-snakeoil.key'),
+      cert: fs.readFileSync(__dirname + '/ssl-cert-snakeoil.pem')
+    };
+    sslProxy = Proxy(https.createServer(options));
+    sslProxy.listen(function () {
+      sslProxyPort = sslProxy.address().port;
+      done();
+    });
+  });
+
+  // shut down test HTTP server
+  after(function (done) {
+    proxy.once('close', function () { done(); });
+    proxy.close();
+  });
+
+  after(function (done) {
+    server.once('close', function () { done(); });
+    server.close();
+  });
+
+  after(function (done) {
+    sslProxy.once('close', function () { done(); });
+    sslProxy.close();
+  });
+
+  describe('constructor', function () {
+    it('should throw an Error if no "proxy" argument is given', function () {
+      assert.throws(function () {
+        new HttpProxyAgent();
+      });
+    });
+    it('should accept a "string" proxy argument', function () {
+      var agent = new HttpProxyAgent('http://127.0.0.1:' + proxyPort);
+      assert.equal('127.0.0.1', agent.proxy.host);
+      assert.equal(proxyPort, agent.proxy.port);
+    });
+    it('should accept a `url.parse()` result object argument', function () {
+      var opts = url.parse('http://127.0.0.1:' + proxyPort);
+      var agent = new HttpProxyAgent(opts);
+      assert.equal('127.0.0.1', agent.proxy.host);
+      assert.equal(proxyPort, agent.proxy.port);
+    });
+    describe('secureProxy', function () {
+      it('should default to `false`', function () {
+        var agent = new HttpProxyAgent({ port: proxyPort });
+        assert.equal(false, agent.secureProxy);
+      });
+      it('should be `false` when "http:" protocol is used', function () {
+        var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'http:' });
+        assert.equal(false, agent.secureProxy);
+      });
+      it('should be `true` when "https:" protocol is used', function () {
+        var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'https:' });
+        assert.equal(true, agent.secureProxy);
+      });
+      it('should be `true` when "https" protocol is used', function () {
+        var agent = new HttpProxyAgent({ port: proxyPort, protocol: 'https' });
+        assert.equal(true, agent.secureProxy);
+      });
+    });
+  });
+
+  describe('"http" module', function () {
+    it('should work over an HTTP proxy', function (done) {
+      // set HTTP "request" event handler for this test
+      server.once('request', function (req, res) {
+        res.end(JSON.stringify(req.headers));
+      });
+
+      var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
+      var agent = new HttpProxyAgent(proxy);
+
+      var opts = url.parse('http://127.0.0.1:' + serverPort);
+      opts.agent = agent;
+
+      http.get(opts, function (res) {
+        var data = '';
+        res.setEncoding('utf8');
+        res.on('data', function (b) {
+          data += b;
+        });
+        res.on('end', function () {
+          data = JSON.parse(data);
+          assert.equal('127.0.0.1:' + serverPort, data.host);
+          assert('via' in data);
+          done();
+        });
+      });
+    });
+    it('should work over an HTTPS proxy', function (done) {
+      // set HTTP "request" event handler for this test
+      server.once('request', function (req, res) {
+        res.end(JSON.stringify(req.headers));
+      });
+
+      var proxy = process.env.HTTPS_PROXY || process.env.https_proxy || 'https://127.0.0.1:' + sslProxyPort;
+      proxy = url.parse(proxy);
+      proxy.rejectUnauthorized = false;
+      var agent = new HttpProxyAgent(proxy);
+      assert.equal(true, agent.secureProxy);
+
+      var opts = url.parse('http://127.0.0.1:' + serverPort);
+      opts.agent = agent;
+
+      http.get(opts, function (res) {
+        var data = '';
+        res.setEncoding('utf8');
+        res.on('data', function (b) {
+          data += b;
+        });
+        res.on('end', function () {
+          data = JSON.parse(data);
+          assert.equal('127.0.0.1:' + serverPort, data.host);
+          assert('via' in data);
+          done();
+        });
+      });
+    });
+    it('should proxy the query string of the request path', function (done) {
+      // set HTTP "request" event handler for this test
+      server.once('request', function (req, res) {
+        res.end(JSON.stringify({
+          url: req.url
+        }));
+      });
+
+      var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
+      var agent = new HttpProxyAgent(proxy);
+
+      var opts = url.parse('http://127.0.0.1:' + serverPort + '/test?foo=bar&1=2');
+      opts.agent = agent;
+
+      http.get(opts, function (res) {
+        var data = '';
+        res.setEncoding('utf8');
+        res.on('data', function (b) {
+          data += b;
+        });
+        res.on('end', function () {
+          data = JSON.parse(data);
+          assert.equal('/test?foo=bar&1=2', data.url);
+          done();
+        });
+      });
+    });
+    it('should receive the 407 authorization code on the `http.ClientResponse`', function (done) {
+      // set a proxy authentication function for this test
+      proxy.authenticate = function (req, fn) {
+        // reject all requests
+        fn(null, false);
+      };
+
+      var proxyUri = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
+      var agent = new HttpProxyAgent(proxyUri);
+
+      var opts = {};
+      // `host` and `port` don't really matter since the proxy will reject anyways
+      opts.host = '127.0.0.1';
+      opts.port = 80;
+      opts.agent = agent;
+
+      http.get(opts, function (res) {
+        assert.equal(407, res.statusCode);
+        assert('proxy-authenticate' in res.headers);
+        delete proxy.authenticate;
+        done();
+      });
+    });
+    it('should send the "Proxy-Authorization" request header', function (done) {
+      // set a proxy authentication function for this test
+      proxy.authenticate = function (req, fn) {
+        // username:password is "foo:bar"
+        fn(null, req.headers['proxy-authorization'] == 'Basic Zm9vOmJhcg==');
+      };
+
+      // set HTTP "request" event handler for this test
+      server.once('request', function (req, res) {
+        res.end(JSON.stringify(req.headers));
+      });
+
+      var proxyUri = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
+      var proxyOpts = url.parse(proxyUri);
+      proxyOpts.auth = 'foo:bar';
+      var agent = new HttpProxyAgent(proxyOpts);
+
+      var opts = url.parse('http://127.0.0.1:' + serverPort);
+      opts.agent = agent;
+
+      http.get(opts, function (res) {
+        var data = '';
+        res.setEncoding('utf8');
+        res.on('data', function (b) {
+          data += b;
+        });
+        res.on('end', function () {
+          data = JSON.parse(data);
+          assert.equal('127.0.0.1:' + serverPort, data.host);
+          assert('via' in data);
+          delete proxy.authenticate;
+          done();
+        });
+      });
+    });
+    it('should emit an "error" event on the `http.ClientRequest` if the proxy does not exist', function (done) {
+      // port 4 is a reserved, but "unassigned" port
+      var proxyUri = 'http://127.0.0.1:4';
+      var agent = new HttpProxyAgent(proxyUri);
+
+      var opts = url.parse('http://nodejs.org');
+      opts.agent = agent;
+
+      var req = http.get(opts);
+      req.once('error', function (err) {
+        assert.equal('ECONNREFUSED', err.code);
+        req.abort();
+        done();
+      });
+    });
+    it('should work after the first tick of the `http.ClientRequest` instance', function (done) {
+      // set HTTP "request" event handler for this test
+      server.once('request', function (req, res) {
+        res.end(JSON.stringify(req.url));
+      });
+
+      var proxy = process.env.HTTP_PROXY || process.env.http_proxy || 'http://127.0.0.1:' + proxyPort;
+      var agent = new HttpProxyAgent(proxy);
+
+      var opts = url.parse('http://127.0.0.1:' + serverPort + '/test');
+      opts.agent = agent;
+
+      // defer the "connect()" function logic, since calling .end() before the
+      // "socket" event can cause weirdness since the HTTP header will have been
+      // cached and the HttpProxyAgent `req.path` patches won't be respected
+      var callback = agent.callback;
+      agent.callback = function (req, opts, fn) {
+        setTimeout(function () {
+          agent.callback = callback;
+          agent.callback(req, opts, fn);
+        }, 10);
+      };
+
+      http.get(opts, function (res) {
+        var data = '';
+        res.setEncoding('utf8');
+        res.on('data', function (b) {
+          data += b;
+        });
+        res.on('end', function () {
+          data = JSON.parse(data);
+          assert.equal('/test', data);
+          done();
+        });
+      });
+    });
+  });
+
+});