🐛 fix immutable header mutation in handleThumbnailRequest #4465
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SVG tester:Number of differences (default views): 0 ✅ Edited: 2025-01-17 23:38:02 UTC |
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Fixes #4450
Our
corsmiddleware mutates all requests, but cached requests are immutable (a quick perusal through Cloudflare Workers/Functions docs didn't state this anywhere, but a lot of other third-party sources did)This PR clones the cached thumbnail requests so that
corsifycan mutate them.These issues are still in the
grapher/thumbnailrouter, but that route should be deprecated, anyway.