前端，配合layer做简单的上传进度提示 var Bucket = ‘桶名称’; var Region = ‘区域’; // 初始化实例 var cos = new COS({ getAuthorization: function (options, callback) { var url = “{获取鉴权的后台地址}”; var xhr = new XMLHttpRequest(); xhr.open(‘GET’, url, true); xhr.onload = function (e) { try { var data = JSON.parse(e.target.responseText); } catch (e) { } callback({ TmpSecretId: data.credentials && data.credentials.tmpSecretId, TmpSecretKey: data.credentials && data.credentials.tmpSecretKey, XCosSecurityToken: data.cr…