HTTP 102 Processing vs 526 Invalid SSL Certificate
HTTP 102 (Processing) is a 1xx Informational response, while 526 (Invalid SSL Certificate) is a 5xx Server Error response. 102 indicates that the server has received and is processing the request, but no response is available yet. Prevents the client from timing out. In contrast, 526 means that cloudflare-specific. The origin's SSL certificate could not be validated.
Description
The server has received and is processing the request, but no response is available yet. Prevents the client from timing out.
When You See It
During long-running WebDAV operations.
How to Fix
Wait for the final response. This is an interim status to prevent timeouts.
Description
Cloudflare-specific. The origin's SSL certificate could not be validated.
When You See It
When using Cloudflare Full (Strict) mode with an invalid origin certificate.
How to Fix
Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.
Key Differences
102 is a 1xx Informational response, while 526 is a 5xx Server Error response.
HTTP 102: The server has received and is processing the request, but no response is available yet. Prevents the client from timing out.
HTTP 526: Cloudflare-specific. The origin's SSL certificate could not be validated.
You encounter 102 when during long-running WebDAV operations.
You encounter 526 when when using Cloudflare Full (Strict) mode with an invalid origin certificate.
When to Use Which
For 102 (Processing): Wait for the final response. This is an interim status to prevent timeouts. For 526 (Invalid SSL Certificate): Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.