Re: Double Slash Conversion to Single Slash in URL Not Working

Christopher Schultz <[email protected]> Tue, 14 Apr 2026 08:32:06 -0400
Newsgroups gmane.comp.jakarta.tomcat.user
Message-ID <[email protected]>
Mickey,

On 4/10/26 3:22 PM, Grackin, Michael A. Mr. (Fed) via users wrote:
> I have discovered our Tomcat 9.0.113 installation is not converting double slashes in the middle of URLs to a single slash and therefore is returning 404 errors.  This is a COTS product so I cannot fix the application to send single slashes.
> 
> Any suggestions as to what to look for that might be preventing this?  From what I can tell this is supposed to be the default behavior, but I assume one of the various setting changes I made to harden our installation has disabled the slash conversion.  I have tried removing all the hardening settings but still not luck.
> 
> Any thoughts/suggestions would be greatly appreciated.

Please post specifics. Important details such as the following are required:

1. Type of url-pattern you are mapping
2. What component is interpreting the URL (and which flavor of URL it's 
reading)

Less important: your Tomcat version

You may be able to fix this with URL rewriting but my guess is that some 
component in the product isn't reading the URL correctly from Tomcat.

-chris