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From "Robert Newson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCORE-202) Expect header value sent as "100-Continue" and not "100-continue"
Date Thu, 13 Aug 2009 10:09:14 GMT

    [ https://issues.apache.org/jira/browse/HTTPCORE-202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742788#action_12742788
] 

Robert Newson commented on HTTPCORE-202:
----------------------------------------

To clarify, I understand that the spec is clear that "100-continue" must be treated case-insensitively.
The real bug is in mochiweb which only matches "100-continue". Sending "100-continue" is still
preferred for clients with similar bugs. 

> Expect header value sent as "100-Continue" and not "100-continue"
> -----------------------------------------------------------------
>
>                 Key: HTTPCORE-202
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-202
>             Project: HttpComponents HttpCore
>          Issue Type: Bug
>            Reporter: Robert Newson
>
> According to http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html, the Expect header
should use "100-continue". HttpClient sends "100-Continue" instead which is not recognized
by some clients (mochiweb, for example) which is expecting the canonical form. While clients
should be tolerant, HttpClient should be strict in what it sends.
> This causes HttpClient to block for two seconds waiting for the "HTTP 1.1 100 continue"
response before it times out and posts the request body, a significant penalty.
> The code in question is here;
> ./httpcore/src/main/java/org/apache/http/protocol/HTTP.java:    public static final String
EXPECT_CONTINUE = "100-Continue";
> A reciprocal bug is reported against mochiweb to be more tolerant at http://code.google.com/p/mochiweb/issues/detail?id=42

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