Nginx cannot cross domains

No one answered once before, probably because the description of the question is not very detailed

configure the nginx server as follows:

add_header Access-Control-Allow-Origin  $http_origin;
add_header Access-Control-Allow-Headers "Cookie,Set-Cookie,token,x-requested-with,content-type,withcredentials";
add_header "Access-Control-Allow-Methods" "GET,POST,OPTIONS,DELETE,PUT";
add_header "Access-Control-Allow-Credentials" "true";

ajax is also configured with withCredentials = true

back-end API verification data if verification fails, return httpCode is 405
if no login or login expires, the httpCode returned is 401

but the problem of forbidding cross-domain access occurs when httpcode is not accessed by 200API!
is there any way to solve the problem that any status code is returned by the server?

Oct.27,2021

try setting the proxy for the interface

location /data {
    proxy_pass http://192.xxx.xx.xxx:3000;
}
< hr >

emmm, it seems that the answers are all php-related, so please ignore them. I use nginx as the server at the front end.


< H2 > ThinkPHP 5 should be able to be configured directly in the middleware without the hassle of going to Nginx. < / H2 >

I don't know what the mindset of those who step on it is.

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read your supplement and found that your server did not return the header Access-Control-Allow-Origin . Nginx has not been matched for a long time. It is estimated that there is a problem with the configuration. You can do this implementation test in the program.


solution: add always at the end of the add_header statement.
details: nginx add_header Syntax: add_header name value [always]; . The optional always indicates that it is forced to be added no matter how much code is returned.
official document: http://nginx.org/en/docs/http.


look at $http_origin what is the value of this variable, this is very important, and cors generally does not need to be equipped in webserver, web framework has middleware and so on to solve.

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