old_contents: var Buffer = require('buffer').Buffer
  var fs = require('fs')
  var keys = require('object-keys')
  var test = require('tape')
  var UAParser = require('ua-parser-js')
  
  var http = require('../..')
  
  function indexOf (arr, item) {
  	var len = arr.length
  	for (var i = 0; i < len; i++) {
  		if (arr[i] === item)
  			return i
  	}
  	return -1
  }
  
  test('headers', function (t) {
  	http.get({
  		path: '/testHeaders?Response-Header=bar&Response-Header-2=BAR2',
  		headers: {
  			'Test-Request-Header': 'foo',
  			'Test-Request-Header-2': 'FOO2'
  		}
  	}, function (res) {
  		var rawHeaders = []
  		for (var i = 0; i < res.rawHeaders.length; i += 2) {
  			var lowerKey = res.rawHeaders[i].toLowerCase()
  			if (lowerKey.indexOf('test-') === 0)
  				rawHeaders.push(lowerKey, res.rawHeaders[i + 1])
  		}
  		var header1Pos = indexOf(rawHeaders, 'test-response-header')
  		t.ok(header1Pos >= 0, 'raw response header 1 present')
  		t.equal(rawHeaders[header1Pos + 1], 'bar', 'raw response header value 1')
  		var header2Pos = indexOf(rawHeaders, 'test-response-header-2')
  		t.ok(header2Pos >= 0, 'raw response header 2 present')
  		t.equal(rawHeaders[header2Pos + 1], 'BAR2', 'raw response header value 2')
  		t.equal(rawHeaders.length, 4, 'correct number of raw headers')
  
  		t.equal(res.headers['test-response-header'], 'bar', 'response header 1')
  		t.equal(res.headers['test-response-header-2'], 'BAR2', 'response header 2')
  
  		var buffers = []
  
  		res.on('end', function () {
  			var body = JSON.parse(Buffer.concat(buffers).toString())
  			t.equal(body['test-request-header'], 'foo', 'request header 1')
  			t.equal(body['test-request-header-2'], 'FOO2', 'request header 2')
  			t.equal(keys(body).length, 2, 'correct number of request headers')
  			t.end()
  		})
  
  		res.on('data', function (data) {
  			buffers.push(data)
  		})
  	})
  })
  
  test('content-type response header', function (t) {
  	http.get('/testHeaders', function (res) {
  		t.equal(res.headers['content-type'], 'application/json', 'content-type preserved')
  		t.end()
  	})
  })
  
  var browser = (new UAParser()).setUA(navigator.userAgent).getBrowser()
  var browserName = browser.name
  var browserVersion = browser.major
  // The content-type header is broken when 'prefer-streaming' or 'allow-wrong-content-type'
  // is passed in browsers that rely on xhr.overrideMimeType(), namely older chrome and newer safari
  var wrongMimeType = ((browserName === 'Chrome' && browserVersion <= 42) ||
  	((browserName === 'Safari' || browserName === 'Mobile Safari') && browserVersion >= 6))
  
  test('content-type response header with forced streaming', function (t) {
  	http.get({
  		path: '/testHeaders',
  		mode: 'prefer-streaming'
  	}, function (res) {
  		if (wrongMimeType)
  			t.equal(res.headers['content-type'], 'text/plain; charset=x-user-defined', 'content-type overridden')
  		else
  			t.equal(res.headers['content-type'], 'application/json', 'content-type preserved')
  		t.end()
  	})
  })
new_contents: var Buffer = require('buffer').Buffer
  var fs = require('fs')
  var test = require('tape')
  var UAParser = require('ua-parser-js')
  
  var http = require('../..')
  
  test('headers', function (t) {
  	http.get({
  		path: '/testHeaders?Response-Header=bar&Response-Header-2=BAR2',
  		headers: {
  			'Test-Request-Header': 'foo',
  			'Test-Request-Header-2': 'FOO2'
  		}
  	}, function (res) {
  		var rawHeaders = []
  		for (var i = 0; i < res.rawHeaders.length; i += 2) {
  			var lowerKey = res.rawHeaders[i].toLowerCase()
  			if (lowerKey.indexOf('test-') === 0)
  				rawHeaders.push(lowerKey, res.rawHeaders[i + 1])
  		}
  		var header1Pos = rawHeaders.indexOf('test-response-header')
  		t.ok(header1Pos >= 0, 'raw response header 1 present')
  		t.equal(rawHeaders[header1Pos + 1], 'bar', 'raw response header value 1')
  		var header2Pos = rawHeaders.indexOf('test-response-header-2')
  		t.ok(header2Pos >= 0, 'raw response header 2 present')
  		t.equal(rawHeaders[header2Pos + 1], 'BAR2', 'raw response header value 2')
  		t.equal(rawHeaders.length, 4, 'correct number of raw headers')
  
  		t.equal(res.headers['test-response-header'], 'bar', 'response header 1')
  		t.equal(res.headers['test-response-header-2'], 'BAR2', 'response header 2')
  
  		var buffers = []
  
  		res.on('end', function () {
  			var body = JSON.parse(Buffer.concat(buffers).toString())
  			t.equal(body['test-request-header'], 'foo', 'request header 1')
  			t.equal(body['test-request-header-2'], 'FOO2', 'request header 2')
  			t.equal(Object.keys(body).length, 2, 'correct number of request headers')
  			t.end()
  		})
  
  		res.on('data', function (data) {
  			buffers.push(data)
  		})
  	})
  })
  
  test('content-type response header', function (t) {
  	http.get('/testHeaders', function (res) {
  		t.equal(res.headers['content-type'], 'application/json', 'content-type preserved')
  		t.end()
  	})
  })
  
  var browser = (new UAParser()).setUA(navigator.userAgent).getBrowser()
  var browserName = browser.name
  var browserVersion = browser.major
  // The content-type header is broken when 'prefer-streaming' or 'allow-wrong-content-type'
  // is passed in browsers that rely on xhr.overrideMimeType(), namely older chrome and newer safari
  var wrongMimeType = ((browserName === 'Chrome' && browserVersion <= 42) ||
  	((browserName === 'Safari' || browserName === 'Mobile Safari') && browserVersion >= 6))
  
  test('content-type response header with forced streaming', function (t) {
  	http.get({
  		path: '/testHeaders',
  		mode: 'prefer-streaming'
  	}, function (res) {
  		if (wrongMimeType)
  			t.equal(res.headers['content-type'], 'text/plain; charset=x-user-defined', 'content-type overridden')
  		else
  			t.equal(res.headers['content-type'], 'application/json', 'content-type preserved')
  		t.end()
  	})
  })
subject: Fix tests