Force dev server clients to revalidate assets and use if-last-modified#8166
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Cold BundlesNo bundles found, this is probably a failed build... Cached BundlesNo bundles found, this is probably a failed build... React HackerNews ✅
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Cold BundlesNo bundle changes detected. Cached BundlesNo bundle changes detected. Three.js ✅
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Cold BundlesNo bundle changes detected. Cached BundlesNo bundle changes detected. |
devongovett
approved these changes
Jun 7, 2022
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Closes #7546
Set
Cache-Control: max-age=0, must-revalidate. AFAICT, this effectively means "never reuse cached assets".For files in the dist dir, we already send a
last-modifiedheader for assets, so send 304s in case they haven't changed.For all other endpoints, it will just send the full response (and behave like
no-store).Not sure if we want to add tests for this...
Webpack (or at least create-react-app) does the same thing, but based on etags instead of mtime.