HTTP
426 Upgrade Required
The server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
Bu Kodu Gördüğünüzde
When a server requires HTTPS or a newer protocol version.
Nasıl düzeltilir
Switch to the protocol specified in the Upgrade response header.
Teknik Özellikler
RFC / Teknik Özellikleri Görüntüle →Kılavuzlar
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