/**
* Fetch
* https://github.com/github/fetch
*
* Released under the MIT License (MIT)
* https://github.com/github/fetch/blob/master/LICENSE
*/
( function ( global, factory ) {
typeof exports === 'object' && typeof module !== 'undefined'
? factory( exports )
: typeof define === 'function' && define.amd
? define( [ 'exports' ], factory )
: factory( ( global.WHATWGFetch = {} ) );
} )( this, function ( exports ) {
'use strict';
var support = {
searchParams: 'URLSearchParams' in self,
iterable: 'Symbol' in self && 'iterator' in Symbol,
blob:
'FileReader' in self &&
'Blob' in self &&
( function () {
try {
new Blob();
return true;
} catch ( e ) {
return false;
}
} )(),
formData: 'FormData' in self,
arrayBuffer: 'ArrayBuffer' in self,
};
function isDataView( obj ) {
return obj && DataView.prototype.isPrototypeOf( obj );
}
if ( support.arrayBuffer ) {
var viewClasses = [
'[object Int8Array]',
'[object Uint8Array]',
'[object Uint8ClampedArray]',
'[object Int16Array]',
'[object Uint16Array]',
'[object Int32Array]',
'[object Uint32Array]',
'[object Float32Array]',
'[object Float64Array]',
];
var isArrayBufferView =
ArrayBuffer.isView ||
function ( obj ) {
return (
obj &&
viewClasses.indexOf(
Object.prototype.toString.call( obj )
) > -1
);
};
}
function normalizeName( name ) {
if ( typeof name !== 'string' ) {
name = String( name );
}
if ( /[^a-z0-9\-#$%&'*+.^_`|~]/i.test( name ) ) {
throw new TypeError( 'Invalid character in header field name' );
}
return name.toLowerCase();
}
function normalizeValue( value ) {
if ( typeof value !== 'string' ) {
value = String( value );
}
return value;
}
// Build a destructive iterator for the value list
function iteratorFor( items ) {
var iterator = {
next: function () {
var value = items.shift();
return { done: value === undefined, value: value };
},
};
if ( support.iterable ) {
iterator[ Symbol.iterator ] = function () {
return iterator;
};
}
return iterator;
}
function Headers( headers ) {
this.map = {};
if ( headers instanceof Headers ) {
headers.forEach( function ( value, name ) {
this.append( name, value );
}, this );
} else if ( Array.isArray( headers ) ) {
headers.forEach( function ( header ) {
this.append( header[ 0 ], header[ 1 ] );
}, this );
} else if ( headers ) {
Object.getOwnPropertyNames( headers ).forEach( function ( name ) {
this.append( name, headers[ name ] );
}, this );
}
}
Headers.prototype.append = function ( name, value ) {
name = normalizeName( name );
value = normalizeValue( value );
var oldValue = this.map[ name ];
this.map[ name ] = oldValue ? oldValue + ', ' + value : value;
};
Headers.prototype[ 'delete' ] = function ( name ) {
delete this.map[ normalizeName( name ) ];
};
Headers.prototype.get = function ( name ) {
name = normalizeName( name );
return this.has( name ) ? this.map[ name ] : null;
};
Headers.prototype.has = function ( name ) {
return this.map.hasOwnProperty( normalizeName( name ) );
};
Headers.prototype.set = function ( name, value ) {
this.map[ normalizeName( name ) ] = normalizeValue( value );
};
Headers.prototype.forEach = function ( callback, thisArg ) {
for ( var name in this.map ) {
if ( this.map.hasOwnProperty( name ) ) {
callback.call( thisArg, this.map[ name ], name, this );
}
}
};
Headers.prototype.keys = function () {
var items = [];
this.forEach( function ( value, name ) {
items.push( name );
} );
return iteratorFor( items );
};
Headers.prototype.values = function () {
var items = [];
this.forEach( function ( value ) {
items.push( value );
} );
return iteratorFor( items );
};
Headers.prototype.entries = function () {
var items = [];
this.forEach( function ( value, name ) {
items.push( [ name, value ] );
} );
return iteratorFor( items );
};
if ( support.iterable ) {
Headers.prototype[ Symbol.iterator ] = Headers.prototype.entries;
}
function consumed( body ) {
if ( body.bodyUsed ) {
return Promise.reject( new TypeError( 'Already read' ) );
}
body.bodyUsed = true;
}
function fileReaderReady( reader ) {
return new Promise( function ( resolve, reject ) {
reader.onload = function () {
resolve( reader.result );
};
reader.onerror = function () {
reject( reader.error );
};
} );
}
function readBlobAsArrayBuffer( blob ) {
var reader = new FileReader();
var promise = fileReaderReady( reader );
reader.readAsArrayBuffer( blob );
return promise;
}
function readBlobAsText( blob ) {
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 {
this._bodyText = body = Object.prototype.toString.call( body );
}
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;
this.signal = input.signal;
if ( ! body && input._bodyInit != null ) {
body = input._bodyInit;
input.bodyUsed = true;
}
} else {
this.url = String( input );
}
this.credentials =
options.credentials || this.credentials || 'same-origin';
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.signal = options.signal || this.signal;
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();
// Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
// https://tools.ietf.org/html/rfc7230#section-3.2
var preProcessedHeaders = rawHeaders.replace( /\r?\n[\t ]+/g, ' ' );
preProcessedHeaders.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 = options.status === undefined ? 200 : options.status;
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 },
} );
};
exports.DOMException = self.DOMException;
try {
new exports.DOMException();
} catch ( err ) {
exports.DOMException = function ( message, name ) {
this.message = message;
this.name = name;
var error = Error( message );
this.stack = error.stack;
};
exports.DOMException.prototype = Object.create( Error.prototype );
exports.DOMException.prototype.constructor = exports.DOMException;
}
function fetch( input, init ) {
return new Promise( function ( resolve, reject ) {
var request = new Request( input, init );
if ( request.signal && request.signal.aborted ) {
return reject(
new exports.DOMException( 'Aborted', 'AbortError' )
);
}
var xhr = new XMLHttpRequest();
function abortXhr() {
xhr.abort();
}
xhr.onload = function () {
var options = {
status: xhr.status,
statusText: xhr.statusText,
headers: parseHeaders( xhr.getAllResponseHeaders() || '' ),
};
options.url =
'responseURL' in xhr
? xhr.responseURL
: options.headers.get( 'X-Request-URL' );
var body = 'response' in xhr ? xhr.response : xhr.responseText;
resolve( new Response( body, options ) );
};
xhr.onerror = function () {
reject( new TypeError( 'Network request failed' ) );
};
xhr.ontimeout = function () {
reject( new TypeError( 'Network request failed' ) );
};
xhr.onabort = function () {
reject( new exports.DOMException( 'Aborted', 'AbortError' ) );
};
xhr.open( request.method, request.url, true );
if ( request.credentials === 'include' ) {
xhr.withCredentials = true;
} else if ( request.credentials === 'omit' ) {
xhr.withCredentials = false;
}
if ( 'responseType' in xhr && support.blob ) {
xhr.responseType = 'blob';
}
request.headers.forEach( function ( value, name ) {
xhr.setRequestHeader( name, value );
} );
if ( request.signal ) {
request.signal.addEventListener( 'abort', abortXhr );
xhr.onreadystatechange = function () {
// DONE (success or failure)
if ( xhr.readyState === 4 ) {
request.signal.removeEventListener( 'abort', abortXhr );
}
};
}
xhr.send(
typeof request._bodyInit === 'undefined'
? null
: request._bodyInit
);
} );
}
fetch.polyfill = true;
if ( ! self.fetch ) {
self.fetch = fetch;
self.Headers = Headers;
self.Request = Request;
self.Response = Response;
}
exports.Headers = Headers;
exports.Request = Request;
exports.Response = Response;
exports.fetch = fetch;
Object.defineProperty( exports, '__esModule', { value: true } );
} );