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.
Beschreibung
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Wann Sie es sehen
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Wie man es behebt
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Beschreibung
Cloudflare-specific. The origin's SSL certificate could not be validated.
Wann Sie es sehen
When using Cloudflare Full (Strict) mode with an invalid origin certificate.
Wie man es behebt
Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.
Wesentliche Unterschiede
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.
Wann welchen verwenden
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.