http://en.wikipedia.org/w/api.php?action=parse&page=Houdini

http://en.wikipedia.org/w/api.php?action=parse&text={{Houdini}}

WFM on wmf, and same on SVN Head.

Are you sure it's not your re-writes?

Bryan.TongMinh wrote:

WORKSFORME on REL1_15 as well.

en.wikipedia.org is running version "1.16alpha-wmf".

Here's an example of how it doesn't work on my site (which runs 1.15.1):
http://tmbw.net/wiki/api.php?action=parse&page=Sandbox

Can you give me more information about what you mean "re-writes"? Are you talking about rewrites in .htaccess? Can you explain how those would potentially affect this?

Thanks

(In reply to comment #3)

en.wikipedia.org is running version "1.16alpha-wmf".

Yes, it's possible the bug was fixed between 1.15 and the 1.16alpha version Wikipedia runs. If that's the case we're still gonna do nothing: 1.16 will be released soonish anyway.

Here's an example of how it doesn't work on my site (which runs 1.15.1):
http://tmbw.net/wiki/api.php?action=parse&page=Sandbox

Can you give me more information about what you mean "re-writes"? Are you
talking about rewrites in .htaccess?

Yes.

Can you explain how those would
potentially affect this?

They could (wrongly) add a &title= parameter to the rewritten URL. Some quick research seems to confirm this: POSTing to http://twbw.net/wiki/api.php?action=rollback throws an error about the user param not being set, while the code checks for the title parameter first.

Re-closing as INVALID, the above is fairly strong evidence that this is not a MediaWiki bug, but a problem with your rewrite rules.

Ok, thanks everyone

Ok, thanks everyone