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Bug: Unwanted chars in included web page

INCLUDE{"http://m4l.berlios.de/cgi-bin/nflash-0.7.2/news.cgi"} shows additional chars, which aren't in the original page. We always get a "0" at the end of the include and somtimes some chars in the middle of the included file.

Test case

Compare: http://m4l.berlios.de/cgi-bin/nflash-0.7.2/news.cgi (source) and http://m4l.berlios.de/cgi-bin/twiki-2/bin/view/Main/WebHome You find a "0" at the end of the included page and the text "Commen 52b ts: 0" instead of "Comments: 0" in the fourth news box. (This error can be very ugly, if the additional chars destroy html tags like "table")


TWiki version: TWikiBetaRelease
TWiki plugins: DefaultPlugin, EmptyPlugin, InterwikiPlugin
Server OS: Solaris 9 (x86)
Web server: Apache/1.3.27 (Unix) mod_ssl/2.8.14 OpenSSL/0.9.6i PHP/4.3.2 PHP/3.0.18 mod_perl/1.25
Perl version: 5.6.1
Client OS: Linux version 2.4.20
Web Browser: Mozilla Firebird 0.6.1

-- RonnyZiegler - 15 Aug 2003

Follow up

This is due to TWiki claiming to origin servers to support HTTP/1.1 - which requires clients to support ChunkedTransferEncoding . TWiki uses a very simplistic implementation of an HTTP client and barely meets the HTTP/1.0 specification, which is why you are seeing this error.

Fix record

A fix which should (99.999% certain) solve your problem suitable for applying against BeijingRelease (not the latest beta) is available on the page ProxiedIncludesBrokenImplementationBug . This fix has been available since 09 Jul 2003, has been tested in production and is known good. (However I wasn't looking for ChunkedTransferEncoding problems - but then I should not have seen any since ChunkedTransferEncoding was introduced in HTTP/1.1 and did not exist in HTTP/1.0 )

At some point I'll port the patch to the latest beta.

-- MichaelSparks - 15 Aug 2003

Resolved record

I applied your proposed patch http://twiki.org/p/pub/Codev/ProxiedIncludesBrokenImplementationBug/PROXYBUG.patch and everything works fine now. Thanks alot!

You should include this patch into the CVS version.

-- RonnyZiegler - 15 Aug 2003

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Topic revision: r3 - 2003-08-15 - RonnyZiegler
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