用阿里云部署了后端接口 用postman也请求成功了
然后随便用vue cli 启动了一个本地案例 使用axios请求接口 报错
let res = await this.$http.post("http://39.105.87.106:8801/api/register",userMes)
Access to XMLHttpRequest at 'http://39.105.87.106:8801/api/register' from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
后端已经
const cors = require('cors')
app.use(cors())
这应该是能解决跨域的 但还是报错了 小白求助 QAQ