nginx configuration variable interpolation

[Vilius Šumskas]

Hello,

I have the following directive in Nginx configuration:

location /docs {
    add_header Access-Control-Allow-Origin $cors_origin;
}

$cors_origin comes from the map {} where the value is set to * or something else.

I have noticed that if $cors_origin is set to 0, add_header doesn’t add Access-Control-Allow-Origin header at all. Is this expected? I don’t see anything about such behaviour in the add_header documentation.

--
   Best Regards,

    Vilius

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nginx.org/pipermail/nginx/attachments/20230327/0c8147b0/attachment.htm>