Running node app with proxy from any port and map to port 80

.htaccess

<VirtualHost IP:80>
	ServerName xyz.com
	ServerAlias www.xyz.com
	DocumentRoot /var/www/xyz/data/www/xyz.com
	ServerAdmin webmaster@xyz.com
	DirectoryIndex index.html index.php
  
  <!--------------- stuff which is placed in this file
	ProxyRequests off
    <Proxy *>
    Order deny,allow
    Allow from all
    </Proxy>
    <Location />
    ProxyPass http://localhost:8000/
    ProxyPassReverse http://localhost:8000/
    </Location>
    --------------------------------------!>
    
	AddDefaultCharset off
	AssignUserID xyz xyz
	CustomLog /var/www/httpd-logs/xyz.com.access.log combined
	ErrorLog /var/www/httpd-logs/xyz.com.error.log
	<FilesMatch "\.ph(p[3-5]?|tml)$">
		SetHandler application/x-httpd-php
	</FilesMatch>
	<FilesMatch "\.phps$">
		SetHandler application/x-httpd-php-source
	</FilesMatch>
	php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f webmaster@xyz.com"
	php_admin_value upload_tmp_dir "/var/www/xyz/data/mod-tmp"
	php_admin_value session.save_path "/var/www/xyz/data/mod-tmp"
	php_admin_value open_basedir "/var/www/xyz/data:."
</VirtualHost>
<Directory /var/www/tabmilesapi/data/www/xyz.com>
	Options +Includes -ExecCGI
	php_admin_flag engine on
</Directory>