nginx 400 request

httpd_proxy.conf

ProxyTimeout 300
SSLProxyEngine on

#testing support proxypass
ProxyPass /support http://localhost:7080/
ProxyPassReverse /support http://localhost:7080/

nginx.conf

    server {
        listen       7080;
        server_name  _;
         ssl on;
    ssl_certificate /etc/nginx/server.crt;
    ssl_certificate_key /etc/nginx/server.key;
        proxy_set_header Host $host:$server_port;
    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 https;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            proxy_pass https://company.custhelp.com;
        }