If the user rather than the content of the website will see this error code, it would mean that the site has been blocked by the authorities for legal reasons – says TVN24 encore.
Error 451 will therefore appear for pages deemed to disseminate the content of threatening national security, violating the copyright, privacy or any other law or court order.
So far, in the case of blocking by the authorities of some pages, you receive the error code 403 and the message “forbidden” – and that was the only information. The increase in censorship of websites have, however, users have demanded to give reasons why a site has been blocked.
On the proposal to establish a server message “Error 451″ already in 2013 there was an employee of Google, Tim Bray. His appearance on the page would indicate to the user that it has been censored by the government for legal reasons.
A few days ago, December 18, IETF, previously opposed to the HTTP protocol 451, agreed to its establishment. The code name comes from the title of a famous novel by Ray Bradbury’s “Fahrenheit 451″ tells of a world where prohibited literature, and cover a temperature of burning paper – the only combustible material in the world of the future.
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