Repeated text

httpwg · Apr 2, 2018 · 468de20 · 468de20
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commit 468de20
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diff --git a/draft-ietf-httpbis-bcp56bis.md b/draft-ietf-httpbis-bcp56bis.md
@@ -533,9 +533,6 @@ response header ({{!RFC7231}}, Section 7.1.4).
 
 See {{state}} for requirements regarding header fields that carry application state (e.g,. Cookie).
 
-Applications that use already-defined HTTP header fields MUST NOT modify their semantics or syntax,
-unless the definition of that header field explicitly allows it (e.g., with an extension field).
-
 
 ## Defining Message Payloads {#payload}