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Alaister Young
9f1eabb990
The Vercel SPA catch-all rewrite (`${prefix}/(.*)` -> /_shell) swallowed
missing extensioned paths, so a stale hashed chunk (e.g. requested after a
redeploy) returned text/html 200 instead of 404. The browser then threw
'Failed to load module script ... MIME type text/html', and because /assets/*
is cached immutable the bogus HTML poisoned the edge cache under the asset URL
(defeating skew protection, which is served after the cache).
Make the shell rewrite match only extensionless paths via a negative lookahead
so a missing file with an extension 404s cleanly — letting skew protection's
__vdpl routing serve the chunk from the deployment that still has it, or the
client's vite:preloadError backstop recover.