[請益] 使用 Nginx 無法正常顯示頁面

請教版上大大，小弟使用Nginx來轉發兩個web service請求，其設定如下

server {
listen 80;
listen 1000;
server_name 192.168.1.150;
return 301 https://for_test.net$request_uri;
}

server {
listen 2000;
server_name 192.168.1.150;
return 301 https://for_test.net/forms$request_uri;
}

server {
listen 443 ssl;
server_name for_test.net;
ssl_certificate /etc/nginx/ssl/certs/for_test.crt;
ssl_certificate_key /etc/nginx/ssl/private/for_test.key;
ssl_session_timeout 5m;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers
'TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384';
ssl_prefer_server_ciphers on;
add_header Strict-Transport-Security "max-age=31536000" always;

### A PyWebIO web service ###
location / {
proxy_pass http://127.0.0.1:3000/;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Photo $scheme;
proxy_set_header HOST $host;
proxy_set_header X-Real-IP $remote_addr;
}

### A Streamlit web service ###
location /form {
proxy_pass http://127.0.0.1:4000/;
alias /home/streamlit_app/;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Photo $scheme;
proxy_set_header HOST $host;
proxy_set_header X-Real-IP $remote_addr;
}
}

已知連線到http://192.168.1.150時會成功轉到 https://for_test.net

但是連線到http://192.168.1.150/form時，則會顯示Connection error

http://192.168.1.150/form對應的是使用Streamlit製作的web service

其錯誤似乎是找不到檔案 (HTTP 404，非HTTP 301)

請問是否有大大能夠指點迷津？
感謝

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