Merge pull request #3331 from carl-mastrangelo/header

Update Header Field name rules
pull/3334/head
Craig Tiller 10 years ago
commit 7496d01ab8
  1. 5
      doc/PROTOCOL-HTTP2.md

@ -43,8 +43,9 @@ Request-Headers are delivered as HTTP2 headers in HEADERS + CONTINUATION frames.
* **User-Agent** → “user-agent” {_structured user-agent string_}
* **Message-Type** → “grpc-message-type” {_type name for message schema_}
* **Custom-Metadata** → Binary-Header / ASCII-Header
* **Binary-Header** → {lowercase ASCII header name ending in “-bin” } {_base64 encoded value_}
* **ASCII-Header** → {lowercase ASCII header name} {_value_}
* **Binary-Header** → {Header-Name “-bin” } {_base64 encoded value_}
* **ASCII-Header** → Header-Name {_value_}
* **Header-Name** → 1*( %x30-39 / %x61-7A / “_” / “-”) ; 0-9 a-z
HTTP2 requires that reserved headers, ones starting with “:” appear before all other headers. Additionally implementations should send **Timeout** immediately after the reserved headers and they should send the **Call-Definition** headers before sending **Custom-Metadata**.

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