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httpstatuses/contents/codes/426.md
Samuel Ryan d8a693bf27 Remove markdown line limit (#52) 
* Removes line length limit from Status Code Markdown

This will make the data easier to use when we develop the API, it needs
to be consistent, arbitrary new lines (especially in text format) will
be a major issue, so some sort of workaround would have to be
implemented, easier to simply fix the source files.

* Removes line length limit from misc. Markdown files
2016-04-23 01:12:07 +01:00

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set code title references
4 426 Upgrade Required
Rails HTTP Status Symbol Symfony HTTP Status Constant
:upgrade_required Response::HTTP_UPGRADE_REQUIRED

The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol.

The server MUST send an Upgrade header field in a 426 response to indicate the required protocol(s)1

Example:

HTTP/1.1 426 Upgrade Required
Upgrade: HTTP/3.0
Connection: Upgrade
Content-Length: 53
Content-Type: text/plain

This service requires use of the HTTP/3.0 protocol.