OCSP Stapling issue with nginx on Proxmox

[Proxmox India]

We have installed nginx on Proxmox as a reverse proxy as per wiki. However even with nginx installed we are unable to get the OCSP stapling working.

Here are the contents from the proxmox.conf file:
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upstream proxmox {
server "fqdn.ourdomain.com";
}

server {
listen 80 default_server;
rewrite ^(.*) https://$host$1 permanent;
}

server {
listen 443;
server_name _;
ssl on;
ssl_stapling on;
ssl_certificate /etc/pve/local/pveproxy-ssl.pem;
ssl_certificate_key /etc/pve/local/pveproxy-ssl.key;
proxy_redirect off;
location / {
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_pass https://localhost:8006;
proxy_buffering off;
client_max_body_size 0;
proxy_connect_timeout 3600s;
proxy_read_timeout 3600s;
proxy_send_timeout 3600s;
send_timeout 3600s;
}
}
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[Proxmox India]

Figured it out, it was a stupid mistake. found the issue.