我正在开发symfony API，并使用Docker进行响应。
我总是得到这个错误：
已阻止跨源请求：同源策略不允许阅读位于http：//localhost：8080/api/settings的远程资源。（原因：不允许有多个CORS标头“访问控制-允许-来源”）。
我在本地主机上，我使用的是nginx：

server {
    listen 80;
    server_name 127.0.0.1;
    root /var/www/symfony/public;

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, DELETE, OPTIONS, PATCH' always;
            add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
            add_header 'Access-Control-Max-Age' 1728000 always;
            add_header 'Content-Type' 'text/plain; charset=utf-8' always;
            add_header 'Content-Length' 0 always;
            return 204;
        }
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, DELETE, OPTIONS, PATCH' always;
        add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
        
        fastcgi_pass php:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        internal;
    }
    location ~ \.php$ {
        return 404;
    }

    error_log /dev/stdout info;
    access_log /var/log/nginx/project_access.log;
}

我使用nelmio捆绑包来实现symfony：

nelmio_cors:
    defaults:
        origin_regex: true
        allow_origin: ['%env(CORS_ALLOW_ORIGIN)%']
        allow_methods: ['GET', 'OPTIONS', 'POST', 'PUT', 'PATCH', 'DELETE']
        allow_headers: ['Content-Type', 'Authorization']
        expose_headers: ['Link']
        max_age: 3600
    paths:
        '^/': null

我的前端应用程序在http：//localhost：3000/上运行，我总是被跨源错误阻止。
我试探着 curl ：

curl -s -D - -H "Origin: http://localhost:3000" http://localhost:8080/api/settings -o /dev/null

HTTP/1.1 200 OK
Server: nginx/1.21.6
Content-Type: application/ld+json; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/7.4.32
Vary: Accept
X-Content-Type-Options: nosniff
X-Frame-Options: deny
Cache-Control: no-cache, private
Date: Tue, 04 Oct 2022 09:23:48 GMT
Access-Control-Allow-Origin: http://localhost:3000
Access-Control-Allow-Credentials: true
Access-Control-Expose-Headers: link
Link: <http://localhost:8080/api/docs.jsonld>; rel="http://www.w3.org/ns/hydra/core#apiDocumentation"
ETag: "9568cb37ea27d38e3a052b9adee96ceb"
X-Debug-Token: 88da2c
X-Debug-Token-Link: http://localhost:8080/_profiler/88da2c
X-Robots-Tag: noindex
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS, PATCH
Access-Control-Allow-Headers: Authorization,DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range
Access-Control-Expose-Headers: Content-Length,Content-Range

第一次
如何正确修复此错误？