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HTTP Status Dragons

426
Upgrade Required

426 Upgrade Required

Image Link

https://httpdragons.com/426.png

JSON Link

https://httpdragons.com/426.json

Image Author

Spiritpaw73

Description

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 sends an Upgrade header in a 426 response to indicate the required protocol(s).
More info
< 424 Failed Dependency
428 Precondition Required >