Links prefetching

[arttemiuss43]

Why doesn't sapper prefetch links currently in view using intersection observer? It would more efficient.

[pngwn]

Because it does them on hover.

There have been requests in the past for the prefetch hover delay to be configurable. Maybe there would be a possibility of prefetch being confgurable in general. Different approaches make sense in different cases.

[thgh]

Because there are many possible prefetch strategies. Sapper provides the cheapest one.

You can prefetch based on intersection observer with: (not tested)

import { prefetch } from '@sapper/app'

onMount(() => {
  const observer = new IntersectionObserver((evt) => prefetch(evt.notsure.href), options)
})