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Signature is likely so the caching layer doesn't have to do all that validation, at least as an initial check.
by TylerE 4y ago
Signature is likely so the caching layer doesn't have to do all that validation, at least as an initial check.
- egeozcan 4y agoIf I'm remembering correctly, people were accessing the original versions of the images uploaded to instagram (removing filters, and even masks) using parameter engineering (We love putting engineering at the end of everything that requires more than 5 seconds of thought these days, so why not). That could be why.