Hello Evgeny! Thank you for your note. I always appreciate it when someone has used software I have made! The hovercards look great :)
I have noticed, on iOS, that the hovercard flickers and then takes a user to the destination of the link on which they have clicked. hovercard.js doesn't take control over links, which would be needed to stop the user from being redirected to the next page. I'm not sure what the UX would look like: click once to see a preview, click again to be taken to the destination? Should there be a pop up that says "Here is a preview of XYZ, click to go to the site"?
I'm open to any ideas. I use hovercard.js across my site and I would like a cleaner experience on mobile. I'm happy to work toward making it happen!