server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    # 👇 跨域配置开始
    add_header Access-Control-Allow-Origin * always;
    add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS, PUT, DELETE' always;
    add_header Access-Control-Allow-Headers '*, Origin, X-Requested-With, Content-Type, Accept, Authorization, X-Token' always;
    add_header Access-Control-Allow-Credentials 'true' always;

    # 处理预检 OPTIONS 请求
    if ($request_method = 'OPTIONS') {
        return 204;
    }
    # 👆 跨域配置结束

    location / {
        try_files $uri $uri/ /index.html;
    }
}