HTTP status codes are not normally a thing that aids political dissidents, or really anything to get excited about. But the newly-made code 451, to be used when something is taken down for legal reasons, is a timely exception.
Status codes are used when requesting and transmitting data over the internet, for example, pulling up this page. There are five classes, 100s-500s, and tens or hundreds of specific codes within those classes. You normally don’t encounter the codes unless something goes wrong—the infamous 404 error for a page not found, for example.
The Internet Engineering Steering Group (IESG), a group of engineers who help review and update the standards used on the internet, has approved a new status code: 451 (a tip to Farenheit 451), to be used when access is denied as a consequence of legal demands. That could be something like a takedown notice served to Google, or censorship by a national government.
Original Story: Gizmodo
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