spec: HEAD blob response should include content-length header

Signed-off-by: wayne warren <wayne.warren.s@gmail.com>
opencontainers · Oct 14, 2023 · efb0e36 · efb0e36
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commit efb0e36
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diff --git a/spec.md b/spec.md
@@ -198,6 +198,7 @@ In order to verify that a repository contains a given manifest or blob, make a `
 
 A HEAD request to an existing blob or manifest URL MUST return `200 OK`.
 A successful response SHOULD contain the digest of the uploaded blob in the header `Docker-Content-Digest`.
+A successful response SHOULD contain the size in bytes of the uploaded blob in the header `Content-Length`.
 
 If the blob or manifest is not found in the registry, the response code MUST be `404 Not Found`.