Module preview 

Who describes a link.

markdown fetches nothing. Resolving a URL’s Open Graph data is an HTTP request and an HTML parse, neither of which a component library has any business carrying, and wasm32-unknown-unknown would spell both differently anyway. Installed once at boot like the highlighter and read at paint: the app answers from its own cache and notifies when a fetch lands.

Structs

Preview

What a bookmark paints beyond the URL it already has.

Functions

set_link_preview

markdown::set_link_preview(cx, my_previews) — call once at boot. Without it a bookmark shows its host and its URL, which is what a link looks like before anyone has resolved it.

Type Aliases

LinkPreview

None for a URL the caller has nothing for yet: the card paints its host and repaints when the answer arrives.