Last modified: 2010-05-15 15:42:46 UTC
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
Mediawiki installations on hosts that do not use PHP as a CGI module do not
exhibit this issue.
This sounds like a dodgy additional security module installed in the web server,
not something MediaWiki would produce.