Trying to pull rDNS (Reverse DNS) info to go along with WAN IP info using the HTTP method, but I'm not getting something right. It almost feels like the URL option in the HTTP method doesn't support user variables. See example below:

HTTPGET=interval:60,set:wan_ipv4,source: https://api.ipify.org/,display:%1,hidden:1 
HTTPGET=interval:60,set:wan_ipv6,source:https://[api64.ipify.org]/,display:%1,hidden:1
HTTPGET=set:wan_rDNS,source: https://ipinfo.io/%wan_ipv4%/hostname,display:%1,hidden:1 
TEXT=interval:30,color:55cc77,text:WAN Address,display:IPv4: %wan_ipv4%   IPv6: %wan_ipv6% |rDNS: %wan_rDNS%