Frontend & browser·The network from the browser
you deployed a fix and the browser served the old file anyway, from its own disk cache.
Cache-Control
Also calledmax-age, no-store, no-cache
The header that tells the browser and any intermediate cache how long a response may be reused and under what conditions. The directives are routinely misread: `no-cache` means revalidate before use rather than do not store, and only `no-store` actually prevents caching. Getting this wrong on an HTML entry point pins users to an old build for as long as the max-age lasts.