[BE] http 요청은 되는데 https 요청이 안 돼요

server{ listen 80; listen 443 ssl; server_name dp-union.site www.dp-union.site; ssl_certificate /etc/letsencrypt/live/dp-union.site/fullchain.pem; ssl_certificate_key /etc/letsencrypt/live/dp-union.site/privkey.pem; ssl_protocols TLSv1.2 TLSv1.3; ssl_prefer_server_ciphers on; ssl_ciphers HIGH:!aNULL:!MD5; if ($scheme = http) { return 301 https://$host$request_uri; } location / { if ($request_method = 'OPTIONS') { add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, Refresh-Token'; add_header 'Access-Control-Expose-Headers' 'Authorization, Refresh-Token' always; add_header 'Access-Control-Max-Age' 1728000; add_header 'Content-Length' 0; add_header 'Content-Type' 'text/plain charset=UTF-8'; return 204; # Preflight 요청은 204로 응답 } proxy_pass http://localhost:8080; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } # 웹소켓 연결 허용 location /ws { proxy_pass http://localhost:8080; # 웹소켓 처리 서버 주소 (포트 8080) proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "Upgrade"; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } # CORS 설정 add_header 'Access-Control-Allow-Origin' '*' always; add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always; add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type, Refresh-Token' always; add_header 'Access-Control-Expose-Headers' 'Authorization, Refresh-Token' always; }