'Viewport' property for data-sveltekit-preload-data

[Devr-pro]

In SvelteKit preload data attributes are pretty awesome stuff, but I was wondering why there's no viewport like property for data-sveltekit-preload-data attribute? I guess, surely there might be reason behind this like any bad practices, but something like data-sveltekit-preload-data="viewport" would be so nice, like prefetching that page's data when that link or element comes in viewport and this would'nt be a bad practice too!
Please, enlighten me up if there's a cause behind this! Thanks.

[gurumaxi]

I was wondering the same, the viewport option would be so handy e.g. for a mobile web app that needs to feel very snappy. Right now, I guess the only option we have is to manually preload the data with preloadData().

[andriytyurnikov]

Is it possible to prefetch data without parsing/evaluation? No DOM, no CSSOM.