Changeset 2351 for draft-ietf-httpbis/latest/p2-semantics.html

Timestamp:

10/08/13 21:24:38 (7 years ago)

Author:

fielding@…

Message:

Add a client SHOULD repeat without the expectation requirement for clients that receive 417 due to Expect and 100-continue; addresses #458

File:

• draft-ietf-httpbis/latest/p2-semantics.html (modified) (1 diff)

draft-ietf-httpbis/latest/p2-semantics.html

@@ -1708 +1708 @@
          </li>
          <li>A client that sends a 100-continue expectation <em class="bcp14">MUST NOT</em> send an expect-value or expect-param within that expectation.
+         </li>
+         <li>A client that receives a <a href="#status.417" class="smpl">417 (Expectation Failed)</a> status code in response to a request containing a 100-continue expectation <em class="bcp14">SHOULD</em> repeat that request without a 100-continue expectation, since the 417 response merely indicates that the response chain does
+            not support expectations (e.g., it passes through an HTTP/1.0 server).
          </li>
       </ul>