Hello,
Found that this URL does not work with the 'Add to linkhut' javascript snippet:
https://www.npmjs.com/package/concurrently
When I try, I get a 403 Forbidden error. Thanks!
Looks like the presence of backquotes included in the URL (due to their presence in the description meta tag of the page) trips some rule of mod_security. I've relaxed some of the settings in there.
Let me know if the issue persists in other instances.