HTTP 101 Switching Protocols vs 526 Invalid SSL Certificate
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 526 (Invalid SSL Certificate) is a 5xx Server Error response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 526 means that cloudflare-specific. The origin's SSL certificate could not be validated.
Deskripsi
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Ketika Anda Melihatnya
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Cara Memperbaiki
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Deskripsi
Cloudflare-specific. The origin's SSL certificate could not be validated.
Ketika Anda Melihatnya
When using Cloudflare Full (Strict) mode with an invalid origin certificate.
Cara Memperbaiki
Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.
Perbedaan Utama
101 is a 1xx Informational response, while 526 is a 5xx Server Error response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 526: Cloudflare-specific. The origin's SSL certificate could not be validated.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 526 when when using Cloudflare Full (Strict) mode with an invalid origin certificate.
Kapan Menggunakan Yang Mana
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 526 (Invalid SSL Certificate): Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.