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Precondition check failed using echo with CGI Module PHP5
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Description

Author: jbruckler

Description:
When attempting to create a new article on a wiki that is installed with PHP as
a CGI module, using the word "echo" followed by a space,then a string, results
in a 412 Precondition Failed error message.

This error code can be circumvented when enclosing the word echo in nowiki tags.

I.E "echo drops" fails, however "<nowiki>echo</nowiki> drops" saves and displays
normally

Mediawiki installations on hosts that do not use PHP as a CGI module do not
exhibit this issue.


Version: 1.8.x
Severity: normal
OS: Windows 2000
Platform: PC
URL: http://piecesofeight.org/ffxi

Details

Reference
bz8079

Event Timeline

bzimport raised the priority of this task from to Medium.Nov 21 2014, 9:32 PM
bzimport set Reference to bz8079.
bzimport added a subscriber: Unknown Object (MLST).

robchur wrote:

This sounds like a dodgy additional security module installed in the web server,
not something MediaWiki would produce.