cross domain
node as the backend to solve cross-domain problems
If the following three types are requested
- text/plain
- multipart/form-data
- application/x-www-form-urlencoded
Ordinary resource requests can be set in node
//允许所有的所有的http访问
Access-Control-Allow-Origin: *
//指定http域名xxxxx访问
Access-Control-Allow-Origin: http://xxxxx
If the request is of the following type (requires preflight request)
- application/xxxxx
Ordinary resource request + request header can be set in node
//允许所有的所有的http访问
Access-Control-Allow-Origin: *
//指定http域名xxxxx访问
Access-Control-Allow-Origin: http://xxxxx
//附带身份凭证的请求
//Access-Control-Allow-Credentials: true
//头部设置
Access-Control-Request-Headers: Content-Type