1 跨域问题(多个域之间的数据访问) #同源策略(ip port 协议全部相同) #本站的只能请求本站域名的数据 #CORS实现(跨域资源共享) #实现CORS通信的关键是服务器.只要服务器实现了CORS接口,就可以跨源通信. #CORS基本流程 #1_CORS请求分成两类:简单请求(simple request)和非简单请求(not-so-simple request) #2_满足一下为简单请求 (1) 请求方法是以下三种方法之一: HEAD GET POST (2)HTTP的头信息不超出以下…
报错信息 Access to XMLHttpRequest at 'http://platformapi-test.lih-elearning.cn/api/v1/login' from origin 'http://www.vue.com' has been blocked by CORS policy: Request header field Access-Control-Allow-Origin is not allowed by Access-Control-Allow-Headers…
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text; using System.Web; using System.Web.SessionState; namespace GL { public class CrossDomainHandler:IHttpModule, IRequiresSessionStat…