Vue axios跨域请求问题

Question

1.vue axios跨域请求,后台已配置允许跨域,代理访问的时候还报错跨域2.配置了代理访问地址还是localhostaxios.defaults.headers.common['Access-Control-Allow-Origin'] = "*";axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';proxyTable: {  '/apis': {    target: 'http://192.168.1.109/xxx/aa',     changeOrigin: true,    pathRewrite: {      '^/apis': ''       }  }}this.$http.post('/apis/bbb/cccc', {  json:JSON.stringify({})}).then(function (response) {  console.log(response);}).catch(function (error) {  console.log(error);});3.请求结果报错Request header field Access-Control-Allow-Origin is not allowed by Access-Control-Allow-Headers in preflight response.Error: Request failed with status code 404at createError (createError.js?16d0:16)at settle (settle.js?db52:18)at XMLHttpRequest.handleLoad (xhr.js?ec6c:77)

Answer 1

你这个报错是因为你的请求中除了安全的头部字段额外加了Access-Control-Allow-Origin，后台并不允许这个字段
解决办法
后台配置响应头Access-Control-Allow-Headers中加上Access-Control-Allow-Origin