The `immutable, max-age=1y` media header pinned stale footage in the browser for
a year, so a re-sourced or re-cropped clip (e.g. the de-captioned cosmos) never
showed without a manual cache clear. Switch /media to `no-cache` (store, but
revalidate every load): instant altitude swaps already come from the in-memory
blob preload, so the HTTP cache only matters on (re)load — where a conditional
request is a cheap 304 when unchanged but picks up edited clips immediately.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
BenStullsBets
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