this post was submitted on 28 Dec 2024
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Copyright Industry Wants To Apply Automated Blocking To The Internet’s Core Routers (www.techdirt.com)
submitted 1 week ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 1 week ago

File headers, magic bits, all sorts of stuff. Plus you can (and they do) try to load common file types, so if a PNG isn't loading correctly, it fails the test.