Vite 7: prerender sourcemap is always null

[rschristian]

Just a todo, no idea why this is yet

vite-prerender-plugin/src/plugins/prerender-plugin.js

Line 355 in 7467489

const sourceMapContent = prerenderEntry.map;

[rschristian]

Turns out this is rolldown-vite specifically, probably with the manual chunk. I'll leave this open for now as it'll likely need to be fixed upstream but I don't want to forget about it