next
Version:
The React Framework
12 lines (11 loc) • 823 B
JavaScript
export function getPreviouslyCachedImageOrNull(upstreamImage, previousCacheEntry) {
var _previousCacheEntry_value;
if ((previousCacheEntry == null ? void 0 : (_previousCacheEntry_value = previousCacheEntry.value) == null ? void 0 : _previousCacheEntry_value.kind) === 'IMAGE' && // Images that are SVGs, animated or failed the optimization previously end up using upstreamEtag as their etag as well,
// in these cases we want to trigger a new "optimization" attempt.
previousCacheEntry.value.upstreamEtag !== previousCacheEntry.value.etag && // and the upstream etag is the same as the previous cache entry's
upstreamImage.etag === previousCacheEntry.value.upstreamEtag) {
return previousCacheEntry.value;
}
return null;
}
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