[pmwiki-users] Error 406

Petko Yotov 5ko at 5ko.fr
Thu Dec 9 21:21:29 PST 2021

This error code is never issued by the PmWiki core, so I suspect a 
server (mis-)configuration. This request is blocked, never reaching 

The first thing I'd check is that the server accepts pathname 
information, like you use pmwiki.php/Main/HomePage instead of 
pmwiki.php?n=Main.HomePage. If it is disabled, on the Apache server it 
can be enabled with this line in .htaccess:

   AcceptPathInfo On

However, since you say it only happens when you post an edit form, and 
only on some pages, it may be a web application firewall (WAF) doing 
this. Many hosting providers use the "mod_security" WAF, and you need to 
review the documentation of your hosting provider about what can be 
configured and how.


If you upgrade :  http://www.pmwiki.org/Upgrades

On 09/12/2021 22:07, Cricket Onebit wrote:
> I updated our website, and now get
> The requested URL /pmwiki/pmwiki.php/Main/HomePage?action=edit 
> encountered
> error 406. Please contact the site administrator.
> It happens when I Save a page, or even when I Cancel a save, but only
> happens for some pages.
> Fingers crossed it's easy to fix if I look in the right place. I 
> haven't
> used PmWiki for anything but updating content and software for this 
> site
> for almost 10 years. (I miss it!)
> Thanks in advance,
> Sandy Schoen
> _______________________________________________
> pmwiki-users mailing list
> pmwiki-users at pmichaud.com
> http://www.pmichaud.com/mailman/listinfo/pmwiki-users

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