Feature: preload links in viewport

[Philipp Daun]

Describe the problem

• Currently, we have to add DOM attributes on elements to preload
• That doesn't quite fit the claim of the plugin: smart preloading
• A better heuristic would be preloading visible links

Describe the proposed solution

• Implement a feature similar to quicklink: preload visible links in the viewport
• Install an IntersectionObserver on the viewport
• Preload all links inside the viewport

Alternatives considered

• Use quicklink directly
  • They include lots of compatibility code we don't need
  • They have lots of options we don't need

How important is this feature to you?

• Nice to have
• Would make my life a lot easier
• I cannot use swup without it