In script.js, at line no 3, in URL("https://ramenameld.com") change it to URL("https://naveen6802.me") to view preview of a DNSSEC enabled website extension.
If you are gonna launch it then use URL(window.location.href) to view the address of a current tab-opened website.
Check out the live preview of this extension here- https://naveen-6802.github.io/sodogetip-ens