Request.prototype.end = function(fn){
var self = this;
var xhr = this.xhr = getXHR();
var query = this._query.join('&');
var timeout = this._timeout;
var data = this._formData || this._data;
// store callback
this._callback = fn || noop;
// state change
xhr.onreadystatechange = function(){
if (4 != xhr.readyState) return;
if (0 == xhr.status) {
if (self.aborted) return self.timeoutError();
return self.crossDomainError();
}
self.emit('end');
};
// progress
if (xhr.upload) {
xhr.upload.onprogress = function(e){
e.percent = e.loaded / e.total * 100;
self.emit('progress', e);
};
}
// timeout
if (timeout && !this._timer) {
this._timer = setTimeout(function(){
self.abort();
}, timeout);
}
// querystring
if (query) {
query = request.serializeObject(query);
this.url += ~this.url.indexOf('?')
? '&' + query
: '?' + query;
}
// initiate request
xhr.open(this.method, this.url, true);
// CORS
if (this._withCredentials) xhr.withCredentials = true;
// body
if ('GET' != this.method && 'HEAD' != this.method && 'string' != typeof data && !isHost(data)) {
// serialize stuff
var serialize = request.serialize[this.getHeader('Content-Type')];
if (serialize) data = serialize(data);
}
// set header fields
for (var field in this.header) {
if (null == this.header[field]) continue;
xhr.setRequestHeader(field, this.header[field]);
}
// send stuff
this.emit('request', this);
xhr.send(data);
return this;
};
Request.prototype.end = function(fn){
var self = this;
var xhr = this.xhr = request.getXHR();
var query = this._query.join('&');
var timeout = this._timeout;
var data = this._formData || this._data;
// store callback
this._callback = fn || noop;
// state change
xhr.onreadystatechange = function(){
if (4 != xhr.readyState) return;
// In IE9, reads to any property (e.g. status) off of an aborted XHR will
// result in the error "Could not complete the operation due to error c00c023f"
var status;
try { status = xhr.status } catch(e) { status = 0; }
if (0 == status) {
if (self.timedout) return self.timeoutError();
if (self.aborted) return;
return self.crossDomainError();
}
self.emit('end');
};
// progress
var handleProgress = function(e){
if (e.total > 0) {
e.percent = e.loaded / e.total * 100;
}
self.emit('progress', e);
};
if (this.hasListeners('progress')) {
xhr.onprogress = handleProgress;
}
try {
if (xhr.upload && this.hasListeners('progress')) {
xhr.upload.onprogress = handleProgress;
}
} catch(e) {
// Accessing xhr.upload fails in IE from a web worker, so just pretend it doesn't exist.
// Reported here:
// https://connect.microsoft.com/IE/feedback/details/837245/xmlhttprequest-upload-throws-invalid-argument-when-used-from-web-worker-context
}
// timeout
if (timeout && !this._timer) {
this._timer = setTimeout(function(){
self.timedout = true;
self.abort();
}, timeout);
}
// querystring
if (query) {
query = request.serializeObject(query);
this.url += ~this.url.indexOf('?')
? '&' + query
: '?' + query;
}
// initiate request
xhr.open(this.method, this.url, true);
// CORS
if (this._withCredentials) xhr.withCredentials = true;
// body
if ('GET' != this.method && 'HEAD' != this.method && 'string' != typeof data && !isHost(data)) {
// serialize stuff
var contentType = this.getHeader('Content-Type');
var serialize = this._parser || request.serialize[contentType ? contentType.split(';')[0] : ''];
if (!serialize && isJSON(contentType)) serialize = request.serialize['application/json'];
if (serialize) data = serialize(data);
}
// set header fields
for (var field in this.header) {
if (null == this.header[field]) continue;
xhr.setRequestHeader(field, this.header[field]);
}
// send stuff
this.emit('request', this);
// IE11 xhr.send(undefined) sends 'undefined' string as POST payload (instead of nothing)
// We need null here if data is undefined
xhr.send(typeof data !== 'undefined' ? data : null);
return this;
};