oxe-cli/lib/poly.js

Oxe command line interface program for Oxe applications.

/* Polyfill service v3.27.0
 * For detailed credits and licence information see https://github.com/financial-times/polyfill-service.
 *
 * Features requested: fetch
 *
 * - Object.defineProperty, License: CC0 (required by "_ESAbstract.CreateMethodProperty", "Array.prototype.forEach", "fetch", "Object.getOwnPropertyNames", "Event", "XMLHttpRequest")
 * - _ESAbstract.CreateMethodProperty, License: CC0 (required by "Array.prototype.forEach", "fetch", "Object.getOwnPropertyNames")
 * - _ESAbstract.ToObject, License: CC0 (required by "Array.prototype.forEach", "fetch", "_ESAbstract.GetV", "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString")
 * - _ESAbstract.ToInteger, License: CC0 (required by "_ESAbstract.ToLength", "Array.prototype.forEach", "fetch")
 * - _ESAbstract.ToLength, License: CC0 (required by "Array.prototype.forEach", "fetch")
 * - _ESAbstract.Get, License: CC0 (required by "Array.prototype.forEach", "fetch", "_ESAbstract.OrdinaryToPrimitive", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString")
 * - _ESAbstract.IsCallable, License: CC0 (required by "Array.prototype.forEach", "fetch", "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "_ESAbstract.OrdinaryToPrimitive")
 * - _ESAbstract.HasProperty, License: CC0 (required by "Array.prototype.forEach", "fetch")
 * - _ESAbstract.Call, License: CC0 (required by "Array.prototype.forEach", "fetch", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "_ESAbstract.OrdinaryToPrimitive")
 * - _ESAbstract.GetV, License: CC0 (required by "_ESAbstract.GetMethod", "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.forEach", "fetch")
 * - _ESAbstract.GetMethod, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.forEach", "fetch")
 * - _ESAbstract.Type, License: CC0 (required by "_ESAbstract.ToString", "Array.prototype.forEach", "fetch", "_ESAbstract.ToPrimitive", "_ESAbstract.OrdinaryToPrimitive")
 * - _ESAbstract.OrdinaryToPrimitive, License: CC0 (required by "_ESAbstract.ToPrimitive", "_ESAbstract.ToString", "Array.prototype.forEach", "fetch")
 * - _ESAbstract.ToPrimitive, License: CC0 (required by "_ESAbstract.ToString", "Array.prototype.forEach", "fetch")
 * - _ESAbstract.ToString, License: CC0 (required by "Array.prototype.forEach", "fetch")
 * - Array.prototype.forEach, License: CC0 (required by "fetch")
 * - Object.getOwnPropertyNames, License: CC0 (required by "fetch")
 * - Promise, License: MIT (required by "fetch")
 * - Window, License: CC0 (required by "Event", "XMLHttpRequest", "fetch")
 * - Document, License: CC0 (required by "Event", "XMLHttpRequest", "fetch", "Element")
 * - Element, License: CC0 (required by "Event", "XMLHttpRequest", "fetch")
 * - Event, License: CC0 (required by "XMLHttpRequest", "fetch")
 * - XMLHttpRequest, License: CC0 (required by "fetch")
 * - fetch, License: MIT */

(function(undefined) {
if (!(// In IE8, defineProperty could only act on DOM elements, so full support
// for the feature requires the ability to set a property on an arbitrary object
'defineProperty' in Object && (function() {
	try {
		var a = {};
		Object.defineProperty(a, 'test', {value:42});
		return true;
	} catch(e) {
		return false
	}
}()))) {

// Object.defineProperty
(function (nativeDefineProperty) {

	var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
	var ERR_ACCESSORS_NOT_SUPPORTED = 'Getters & setters cannot be defined on this javascript engine';
	var ERR_VALUE_ACCESSORS = 'A property cannot both have accessors and be writable or have a value';

	// Polyfill.io - This does not use CreateMethodProperty because our CreateMethodProperty function uses Object.defineProperty.
	Object['defineProperty'] = function defineProperty(object, property, descriptor) {

		// Where native support exists, assume it
		if (nativeDefineProperty && (object === window || object === document || object === Element.prototype || object instanceof Element)) {
			return nativeDefineProperty(object, property, descriptor);
		}

		if (object === null || !(object instanceof Object || typeof object === 'object')) {
			throw new TypeError('Object.defineProperty called on non-object');
		}

		if (!(descriptor instanceof Object)) {
			throw new TypeError('Property description must be an object');
		}

		var propertyString = String(property);
		var hasValueOrWritable = 'value' in descriptor || 'writable' in descriptor;
		var getterType = 'get' in descriptor && typeof descriptor.get;
		var setterType = 'set' in descriptor && typeof descriptor.set;

		// handle descriptor.get
		if (getterType) {
			if (getterType !== 'function') {
				throw new TypeError('Getter must be a function');
			}
			if (!supportsAccessors) {
				throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
			}
			if (hasValueOrWritable) {
				throw new TypeError(ERR_VALUE_ACCESSORS);
			}
			Object.__defineGetter__.call(object, propertyString, descriptor.get);
		} else {
			object[propertyString] = descriptor.value;
		}

		// handle descriptor.set
		if (setterType) {
			if (setterType !== 'function') {
				throw new TypeError('Setter must be a function');
			}
			if (!supportsAccessors) {
				throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED);
			}
			if (hasValueOrWritable) {
				throw new TypeError(ERR_VALUE_ACCESSORS);
			}
			Object.__defineSetter__.call(object, propertyString, descriptor.set);
		}

		// OK to define value unconditionally - if a getter has been specified as well, an error would be thrown above
		if ('value' in descriptor) {
			object[propertyString] = descriptor.value;
		}

		return object;
	};
}(Object.defineProperty));

}


// _ESAbstract.CreateMethodProperty
// 7.3.5. CreateMethodProperty ( O, P, V )
function CreateMethodProperty(O, P, V) { // eslint-disable-line no-unused-vars
	// 1. Assert: Type(O) is Object.
	// 2. Assert: IsPropertyKey(P) is true.
	// 3. Let newDesc be the PropertyDescriptor{[[Value]]: V, [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: true}.
	var newDesc = {
		value: V,
		writable: true,
		enumerable: false,
		configurable: true
	};
	// 4. Return ? O.[[DefineOwnProperty]](P, newDesc).
	Object.defineProperty(O, P, newDesc);
}

// _ESAbstract.ToObject
// 7.1.13 ToObject ( argument )
// The abstract operation ToObject converts argument to a value of type Object according to Table 12:
// Table 12: ToObject Conversions
/*
|----------------------------------------------------------------------------------------------------------------------------------------------------|
| Argument Type | Result                                                                                                                             |
|----------------------------------------------------------------------------------------------------------------------------------------------------|
| Undefined     | Throw a TypeError exception.                                                                                                       |
| Null          | Throw a TypeError exception.                                                                                                       |
| Boolean       | Return a new Boolean object whose [[BooleanData]] internal slot is set to argument. See 19.3 for a description of Boolean objects. |
| Number        | Return a new Number object whose [[NumberData]] internal slot is set to argument. See 20.1 for a description of Number objects.    |
| String        | Return a new String object whose [[StringData]] internal slot is set to argument. See 21.1 for a description of String objects.    |
| Symbol        | Return a new Symbol object whose [[SymbolData]] internal slot is set to argument. See 19.4 for a description of Symbol objects.    |
| Object        | Return argument.                                                                                                                   |
|----------------------------------------------------------------------------------------------------------------------------------------------------|
*/
function ToObject(argument) { // eslint-disable-line no-unused-vars
	if (argument === null || argument === undefined) {
		throw TypeError();
	}
  return Object(argument);
}

// _ESAbstract.ToInteger
// 7.1.4. ToInteger ( argument )
function ToInteger(argument) { // eslint-disable-line no-unused-vars
	// 1. Let number be ? ToNumber(argument).
	var number = Number(argument);
	// 2. If number is NaN, return +0.
	if (isNaN(number)) {
		return 0;
	}
	// 3. If number is +0, -0, +∞, or -∞, return number.
	if (1/number === Infinity || 1/number === -Infinity || number === Infinity || number === -Infinity) {
		return number;
	}
	// 4. Return the number value that is the same sign as number and whose magnitude is floor(abs(number)).
	return ((number < 0) ? -1 : 1) * Math.floor(Math.abs(number));
}

// _ESAbstract.ToLength
/* global ToInteger */
// 7.1.15. ToLength ( argument )
function ToLength(argument) { // eslint-disable-line no-unused-vars
	// 1. Let len be ? ToInteger(argument).
	var len = ToInteger(argument);
	// 2. If len ≤ +0, return +0.
	if (len <= 0) {
		return 0;
	}
	// 3. Return min(len, 253-1).
	return Math.min(len, Math.pow(2, 53) -1);
}

// _ESAbstract.Get
// 7.3.1. Get ( O, P )
function Get(O, P) { // eslint-disable-line no-unused-vars
	// 1. Assert: Type(O) is Object.
	// 2. Assert: IsPropertyKey(P) is true.
	// 3. Return ? O.[[Get]](P, O).
	return O[P];
}

// _ESAbstract.IsCallable
// 7.2.3. IsCallable ( argument )
function IsCallable(argument) { // eslint-disable-line no-unused-vars
	// 1. If Type(argument) is not Object, return false.
	// 2. If argument has a [[Call]] internal method, return true.
	// 3. Return false.

	// Polyfill.io - Only function objects have a [[Call]] internal method. This means we can simplify this function to check that the argument has a type of function.
	return typeof argument === 'function';
}

// _ESAbstract.HasProperty
// 7.3.10. HasProperty ( O, P )
function HasProperty(O, P) { // eslint-disable-line no-unused-vars
	// Assert: Type(O) is Object.
	// Assert: IsPropertyKey(P) is true.
	// Return ? O.[[HasProperty]](P).
	return P in O;
}

// _ESAbstract.Call
/* global IsCallable */
// 7.3.12. Call ( F, V [ , argumentsList ] )
function Call(F, V /* [, argumentsList] */) { // eslint-disable-line no-unused-vars
	// 1. If argumentsList is not present, set argumentsList to a new empty List.
	var argumentsList = arguments.length > 2 ? arguments[2] : [];
	// 2. If IsCallable(F) is false, throw a TypeError exception.
	if (IsCallable(F) === false) {
		throw new TypeError(Object.prototype.toString.call(F) + 'is not a function.');
	}
	// 3. Return ? F.[[Call]](V, argumentsList).
	return F.apply(V, argumentsList);
}

// _ESAbstract.GetV
/* global ToObject */
// 7.3.2 GetV (V, P)
function GetV(v, p) { // eslint-disable-line no-unused-vars
	// 1. Assert: IsPropertyKey(P) is true.
	// 2. Let O be ? ToObject(V).
	var o = ToObject(v);
	// 3. Return ? O.[[Get]](P, V).
	return o[p];
}

// _ESAbstract.GetMethod
/* global GetV, IsCallable */
// 7.3.9. GetMethod ( V, P )
function GetMethod(V, P) { // eslint-disable-line no-unused-vars
	// 1. Assert: IsPropertyKey(P) is true.
	// 2. Let func be ? GetV(V, P).
	var func = GetV(V, P);
	// 3. If func is either undefined or null, return undefined.
	if (func === null || func === undefined) {
		return undefined;
	}
	// 4. If IsCallable(func) is false, throw a TypeError exception.
	if (IsCallable(func) === false) {
		throw new TypeError('Method not callable: ' + P);
	}
	// 5. Return func.
	return func;
}

// _ESAbstract.Type
// "Type(x)" is used as shorthand for "the type of x"...
function Type(x) { // eslint-disable-line no-unused-vars
	switch (typeof x) {
		case 'undefined':
			return 'undefined';
		case 'boolean':
			return 'boolean';
		case 'number':
			return 'number';
		case 'string':
			return 'string';
		case 'symbol':
			return 'symbol';
		default:
			// typeof null is 'object'
			if (x === null) return 'null';
			// Polyfill.io - This is here because a Symbol polyfill will have a typeof `object`.
			if ('Symbol' in this && x instanceof this.Symbol) return 'symbol';
			return 'object';
	}
}

// _ESAbstract.OrdinaryToPrimitive
/* global Get, IsCallable, Call, Type */
// 7.1.1.1. OrdinaryToPrimitive ( O, hint )
function OrdinaryToPrimitive(O, hint) { // eslint-disable-line no-unused-vars
	// 1. Assert: Type(O) is Object.
	// 2. Assert: Type(hint) is String and its value is either "string" or "number".
	// 3. If hint is "string", then
	if (hint === 'string') {
		// a. Let methodNames be « "toString", "valueOf" ».
		var methodNames = ['toString', 'valueOf'];
		// 4. Else,
	} else {
		// a. Let methodNames be « "valueOf", "toString" ».
		methodNames = ['valueOf', 'toString'];
	}
	// 5. For each name in methodNames in List order, do
	for (var i = 0; i < methodNames.length; ++i) {
		var name = methodNames[i];
		// a. Let method be ? Get(O, name).
		var method = Get(O, name);
		// b. If IsCallable(method) is true, then
		if (IsCallable(method)) {
			// i. Let result be ? Call(method, O).
			var result = Call(method, O);
			// ii. If Type(result) is not Object, return result.
			if (Type(result) !== 'object') {
				return result;
			}
		}
	}
	// 6. Throw a TypeError exception.
	throw new TypeError('Cannot convert to primitive.');
}

// _ESAbstract.ToPrimitive
/* global Type, GetMethod, Call, OrdinaryToPrimitive */
// 7.1.1. ToPrimitive ( input [ , PreferredType ] )
function ToPrimitive(input /* [, PreferredType] */) { // eslint-disable-line no-unused-vars
	var PreferredType = arguments.length > 1 ? arguments[1] : undefined;
	// 1. Assert: input is an ECMAScript language value.
	// 2. If Type(input) is Object, then
	if (Type(input) === 'object') {
		// a. If PreferredType is not present, let hint be "default".
		if (arguments.length < 2) {
			var hint = 'default';
			// b. Else if PreferredType is hint String, let hint be "string".
		} else if (PreferredType === String) {
			hint = 'string';
			// c. Else PreferredType is hint Number, let hint be "number".
		} else if (PreferredType === Number) {
			hint = 'number';
		}
		// d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
		var exoticToPrim = typeof this.Symbol === 'function' && typeof this.Symbol.toPrimitive === 'symbol' ? GetMethod(input, this.Symbol.toPrimitive) : undefined;
		// e. If exoticToPrim is not undefined, then
		if (exoticToPrim !== undefined) {
			// i. Let result be ? Call(exoticToPrim, input, « hint »).
			var result = Call(exoticToPrim, input, [hint]);
			// ii. If Type(result) is not Object, return result.
			if (Type(result) !== 'object') {
				return result;
			}
			// iii. Throw a TypeError exception.
			throw new TypeError('Cannot convert exotic object to primitive.');
		}
		// f. If hint is "default", set hint to "number".
		if (hint === 'default') {
			hint = 'number';
		}
		// g. Return ? OrdinaryToPrimitive(input, hint).
		return OrdinaryToPrimitive(input, hint);
	}
	// 3. Return input
	return input;
}

// _ESAbstract.ToString
/* global Type, ToPrimitive */
// 7.1.12. ToString ( argument )
// The abstract operation ToString converts argument to a value of type String according to Table 11:
// Table 11: ToString Conversions
/*
|---------------|--------------------------------------------------------|
| Argument Type | Result                                                 |
|---------------|--------------------------------------------------------|
| Undefined     | Return "undefined".                                    |
|---------------|--------------------------------------------------------|
| Null	        | Return "null".                                         |
|---------------|--------------------------------------------------------|
| Boolean       | If argument is true, return "true".                    |
|               | If argument is false, return "false".                  |
|---------------|--------------------------------------------------------|
| Number        | Return NumberToString(argument).                       |
|---------------|--------------------------------------------------------|
| String        | Return argument.                                       |
|---------------|--------------------------------------------------------|
| Symbol        | Throw a TypeError exception.                           |
|---------------|--------------------------------------------------------|
| Object        | Apply the following steps:                             |
|               | Let primValue be ? ToPrimitive(argument, hint String). |
|               | Return ? ToString(primValue).                          |
|---------------|--------------------------------------------------------|
*/
function ToString(argument) { // eslint-disable-line no-unused-vars
	switch(Type(argument)) {
		case 'symbol':
			throw new TypeError('Cannot convert a Symbol value to a string');
			break;
		case 'object':
			var primValue = ToPrimitive(argument, 'string');
			return ToString(primValue);
		default:
			return String(argument);
	}
}
if (!('forEach' in Array.prototype)) {

// Array.prototype.forEach
/* global Call, CreateMethodProperty, Get, HasProperty, IsCallable, ToLength, ToObject, ToString */
// 22.1.3.10. Array.prototype.forEach ( callbackfn [ , thisArg ] )
CreateMethodProperty(Array.prototype, 'forEach', function forEach(callbackfn /* [ , thisArg ] */) {
	// 1. Let O be ? ToObject(this value).
	var O = ToObject(this);
	// Polyfill.io - If O is a String object, split it into an array in order to iterate correctly.
	// We will use arrayLike in place of O when we are iterating through the list.
	var arraylike = O instanceof String ? O.split('') : O;
	// 2. Let len be ? ToLength(? Get(O, "length")).
	var len = ToLength(Get(O, "length"));
	// 3. If IsCallable(callbackfn) is false, throw a TypeError exception.
	if (IsCallable(callbackfn) === false) {
		throw new TypeError(callbackfn + ' is not a function');
	}
	// 4. If thisArg is present, let T be thisArg; else let T be undefined.
	var T = arguments.length > 1 ? arguments[1] : undefined;
	// 5. Let k be 0.
	var k = 0;
	// 6. Repeat, while k < len
	while (k < len) {
		// a. Let Pk be ! ToString(k).
		var Pk = ToString(k);
		// b. Let kPresent be ? HasProperty(O, Pk).
		var kPresent = HasProperty(arraylike, Pk);
		// c. If kPresent is true, then
		if (kPresent) {
			// i. Let kValue be ? Get(O, Pk).
			var kValue = Get(arraylike, Pk);
			// ii. Perform ? Call(callbackfn, T, « kValue, k, O »).
			Call(callbackfn, T, [kValue, k, O]);
		}
		// d. Increase k by 1.
		k = k + 1;
	}
	// 7. Return undefined.
	return undefined;
});

}

if (!('getOwnPropertyNames' in Object)) {

// Object.getOwnPropertyNames
/* global CreateMethodProperty */

var toString = ({}).toString;
var split = ''.split;

CreateMethodProperty(Object, 'getOwnPropertyNames', function getOwnPropertyNames(object) {
	var buffer = [];
	var key;

	// Non-enumerable properties cannot be discovered but can be checked for by name.
	// Define those used internally by JS to allow an incomplete solution
	var commonProps = ['length', "name", "arguments", "caller", "prototype", "observe", "unobserve"];

	if (typeof object === 'undefined' || object === null) {
		throw new TypeError('Cannot convert undefined or null to object');
	}

	// Polyfill.io fallback for non-array-like strings which exist in some ES3 user-agents (IE 8)
	object = toString.call(object) == '[object String]' ? split.call(object, '') : Object(object);

	// Enumerable properties only
	for (key in object) {
		if (Object.prototype.hasOwnProperty.call(object, key)) {
			buffer.push(key);
		}
	}

	// Check for and add the common non-enumerable properties
	for (var i=0, s=commonProps.length; i<s; i++) {
		if (commonProps[i] in object) buffer.push(commonProps[i]);
	}

	return buffer;
});

}

if (!('Promise' in this)) {

// Promise
!function(n){function t(r){if(e[r])return e[r].exports;var o=e[r]={i:r,l:!1,exports:{}};return n[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}var e={};t.m=n,t.c=e,t.i=function(n){return n},t.d=function(n,e,r){t.o(n,e)||Object.defineProperty(n,e,{configurable:!1,enumerable:!0,get:r})},t.n=function(n){var e=n&&n.__esModule?function(){return n["default"]}:function(){return n};return t.d(e,"a",e),e},t.o=function(n,t){return Object.prototype.hasOwnProperty.call(n,t)},t.p="",t(t.s=100)}({100:/*!***********************!*\
  !*** ./src/global.js ***!
  \***********************/
function(n,t,e){(function(n){var t=e(/*! ./yaku */5);try{n.Promise=t,window.Promise=t}catch(r){}}).call(t,e(/*! ./../~/webpack/buildin/global.js */2))},2:/*!***********************************!*\
  !*** (webpack)/buildin/global.js ***!
  \***********************************/
function(n,t){var e;e=function(){return this}();try{e=e||Function("return this")()||(0,eval)("this")}catch(r){"object"==typeof window&&(e=window)}n.exports=e},5:/*!*********************!*\
  !*** ./src/yaku.js ***!
  \*********************/
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						event.cancelImmediate = true;
					};

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					event.target = event.target || event.srcElement || element;
					event.timeStamp = new Date().getTime();

					if (event.clientX) {
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					element.attachEvent('on' + type, element._events[type]);
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			element._events[type].list.push(listener);
		};

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			var
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			type = arguments[0],
			listener = arguments[1],
			index;

			if (element._events && element._events[type] && element._events[type].list) {
				index = indexOf(element._events[type].list, listener);

				if (index !== -1) {
					element._events[type].list.splice(index, 1);

					if (!element._events[type].list.length) {
						if (element.detachEvent) {
							element.detachEvent('on' + type, element._events[type]);
						}
						delete element._events[type];
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		};

		window.dispatchEvent = Window.prototype.dispatchEvent = Document.prototype.dispatchEvent = Element.prototype.dispatchEvent = function dispatchEvent(event) {
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				throw new Error('DOM Events Exception 0');
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					element = element.nodeType === 9 ? element.parentWindow : element.parentNode;
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			return true;
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			if (document.readyState === 'complete') {
				document.dispatchEvent(new Event('DOMContentLoaded', {
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}());

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if (!('XMLHttpRequest' in this && 'prototype' in this.XMLHttpRequest && 'addEventListener' in this.XMLHttpRequest.prototype)) {

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(function (global, NativeXMLHttpRequest) {
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	global.XMLHttpRequest = function XMLHttpRequest() {
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		nativeRequest.onreadystatechange = function () {
			request.readyState = nativeRequest.readyState;

			var readyState = request.readyState === 4;

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			request.status = readyState ? nativeRequest.status : null;
			request.statusText = readyState ? nativeRequest.statusText : null;

			request.dispatchEvent(new Event('readystatechange'));

			if (readyState) {
				request.dispatchEvent(new Event('load'));
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		if ('onerror' in nativeRequest) {
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	global.XMLHttpRequest.OPENED = 1;
	global.XMLHttpRequest.HEADERS_RECEIVED = 2;
	global.XMLHttpRequest.LOADING = 3;
	global.XMLHttpRequest.DONE = 4;

	var XMLHttpRequestPrototype = global.XMLHttpRequest.prototype;

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	XMLHttpRequestPrototype.removeEventListener = global.removeEventListener;
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	XMLHttpRequestPrototype.abort = function abort() {
		return this._request();
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	XMLHttpRequestPrototype.getAllResponseHeaders = function getAllResponseHeaders() {
		return this._request.getAllResponseHeaders();
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	XMLHttpRequestPrototype.getResponseHeader = function getResponseHeader(header) {
		return this._request.getResponseHeader(header);
	};

	XMLHttpRequestPrototype.open = function open(method, url) {
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		this._request.open(method, url, arguments[2], arguments[3], arguments[4]);
	};

	XMLHttpRequestPrototype.overrideMimeType = function overrideMimeType(mimetype) {
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	XMLHttpRequestPrototype.send = function send() {
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}

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// fetch
(function(self) {
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  var support = {
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    iterable: 'Symbol' in self && 'iterator' in Symbol,
    blob: 'FileReader' in self && 'Blob' in self && (function() {
      try {
        new Blob()
        return true
      } catch(e) {
        return false
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    formData: 'FormData' in self,
    arrayBuffer: 'ArrayBuffer' in self
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      '[object Uint8ClampedArray]',
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    var isArrayBufferView = ArrayBuffer.isView || function(obj) {
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      headers.forEach(function(header) {
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    } else if (headers) {
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    var reader = new FileReader()
    var promise = fileReaderReady(reader)
    reader.readAsText(blob)
    return promise
  }

  function readArrayBufferAsText(buf) {
    var view = new Uint8Array(buf)
    var chars = new Array(view.length)

    for (var i = 0; i < view.length; i++) {
      chars[i] = String.fromCharCode(view[i])
    }
    return chars.join('')
  }

  function bufferClone(buf) {
    if (buf.slice) {
      return buf.slice(0)
    } else {
      var view = new Uint8Array(buf.byteLength)
      view.set(new Uint8Array(buf))
      return view.buffer
    }
  }

  function Body() {
    this.bodyUsed = false

    this._initBody = function(body) {
      this._bodyInit = body
      if (!body) {
        this._bodyText = ''
      } else if (typeof body === 'string') {
        this._bodyText = body
      } else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
        this._bodyBlob = body
      } else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
        this._bodyFormData = body
      } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
        this._bodyText = body.toString()
      } else if (support.arrayBuffer && support.blob && isDataView(body)) {
        this._bodyArrayBuffer = bufferClone(body.buffer)
        // IE 10-11 can't handle a DataView body.
        this._bodyInit = new Blob([this._bodyArrayBuffer])
      } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
        this._bodyArrayBuffer = bufferClone(body)
      } else {
        throw new Error('unsupported BodyInit type')
      }

      if (!this.headers.get('content-type')) {
        if (typeof body === 'string') {
          this.headers.set('content-type', 'text/plain;charset=UTF-8')
        } else if (this._bodyBlob && this._bodyBlob.type) {
          this.headers.set('content-type', this._bodyBlob.type)
        } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
          this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8')
        }
      }
    }

    if (support.blob) {
      this.blob = function() {
        var rejected = consumed(this)
        if (rejected) {
          return rejected
        }

        if (this._bodyBlob) {
          return Promise.resolve(this._bodyBlob)
        } else if (this._bodyArrayBuffer) {
          return Promise.resolve(new Blob([this._bodyArrayBuffer]))
        } else if (this._bodyFormData) {
          throw new Error('could not read FormData body as blob')
        } else {
          return Promise.resolve(new Blob([this._bodyText]))
        }
      }

      this.arrayBuffer = function() {
        if (this._bodyArrayBuffer) {
          return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
        } else {
          return this.blob().then(readBlobAsArrayBuffer)
        }
      }
    }

    this.text = function() {
      var rejected = consumed(this)
      if (rejected) {
        return rejected
      }

      if (this._bodyBlob) {
        return readBlobAsText(this._bodyBlob)
      } else if (this._bodyArrayBuffer) {
        return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer))
      } else if (this._bodyFormData) {
        throw new Error('could not read FormData body as text')
      } else {
        return Promise.resolve(this._bodyText)
      }
    }

    if (support.formData) {
      this.formData = function() {
        return this.text().then(decode)
      }
    }

    this.json = function() {
      return this.text().then(JSON.parse)
    }

    return this
  }

  // HTTP methods whose capitalization should be normalized
  var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT']

  function normalizeMethod(method) {
    var upcased = method.toUpperCase()
    return (methods.indexOf(upcased) > -1) ? upcased : method
  }

  function Request(input, options) {
    options = options || {}
    var body = options.body

    if (input instanceof Request) {
      if (input.bodyUsed) {
        throw new TypeError('Already read')
      }
      this.url = input.url
      this.credentials = input.credentials
      if (!options.headers) {
        this.headers = new Headers(input.headers)
      }
      this.method = input.method
      this.mode = input.mode
      if (!body && input._bodyInit != null) {
        body = input._bodyInit
        input.bodyUsed = true
      }
    } else {
      this.url = String(input)
    }

    this.credentials = options.credentials || this.credentials || 'omit'
    if (options.headers || !this.headers) {
      this.headers = new Headers(options.headers)
    }
    this.method = normalizeMethod(options.method || this.method || 'GET')
    this.mode = options.mode || this.mode || null
    this.referrer = null

    if ((this.method === 'GET' || this.method === 'HEAD') && body) {
      throw new TypeError('Body not allowed for GET or HEAD requests')
    }
    this._initBody(body)
  }

  Request.prototype.clone = function() {
    return new Request(this, { body: this._bodyInit })
  }

  function decode(body) {
    var form = new FormData()
    body.trim().split('&').forEach(function(bytes) {
      if (bytes) {
        var split = bytes.split('=')
        var name = split.shift().replace(/\+/g, ' ')
        var value = split.join('=').replace(/\+/g, ' ')
        form.append(decodeURIComponent(name), decodeURIComponent(value))
      }
    })
    return form
  }

  function parseHeaders(rawHeaders) {
    var headers = new Headers()
    rawHeaders.split(/\r?\n/).forEach(function(line) {
      var parts = line.split(':')
      var key = parts.shift().trim()
      if (key) {
        var value = parts.join(':').trim()
        headers.append(key, value)
      }
    })
    return headers
  }

  Body.call(Request.prototype)

  function Response(bodyInit, options) {
    if (!options) {
      options = {}
    }

    this.type = 'default'
    this.status = 'status' in options ? options.status : 200
    this.ok = this.status >= 200 && this.status < 300
    this.statusText = 'statusText' in options ? options.statusText : 'OK'
    this.headers = new Headers(options.headers)
    this.url = options.url || ''
    this._initBody(bodyInit)
  }

  Body.call(Response.prototype)

  Response.prototype.clone = function() {
    return new Response(this._bodyInit, {
      status: this.status,
      statusText: this.statusText,
      headers: new Headers(this.headers),
      url: this.url
    })
  }

  Response.error = function() {
    var response = new Response(null, {status: 0, statusText: ''})
    response.type = 'error'
    return response
  }

  var redirectStatuses = [301, 302, 303, 307, 308]

  Response.redirect = function(url, status) {
    if (redirectStatuses.indexOf(status) === -1) {
      throw new RangeError('Invalid status code')
    }

    return new Response(null, {status: status, headers: {location: url}})
  }

  self.Headers = Headers
  self.Request = Request
  self.Response = Response

  self.fetch = function(input, init) {
    return new Promise(function(resolve, reject) {
      var request = new Request(input, init)
      var xhr = new