Loop Detection in Content Delivery Networks (CDNs), April 2019
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- PROPOSED STANDARD
- S. Ludin
- httpbis (art)
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This document defines the CDN-Loop request header field for HTTP. CDN-Loop addresses an operational need that occurs when an HTTP request is intentionally forwarded between Content Delivery Networks (CDNs), but is then accidentally or maliciously re-routed back into the original CDN causing a non-terminating loop. The new header field can be used to identify the error and terminate the loop.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.