CDNSpeed项目 记录接口响应时间和文件大小。
request: function (method, url, headers) {
var startTime = new Date().getTime();
return $q(function (resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open(method, url, true);
if (typeof headers === 'object') {
for (var key in headers) {
xhr.setRequestHeader(key, headers[key]);
}
}
xhr.onreadystatechange = function (e) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
resolve({ size: xhr.response.length, time: new Date().getTime() - startTime });
} else {
reject();
}
}
};
xhr.send();
});
},
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