Apache and backslashes in mod_rewrite

I want to process all incoming requests through a single script (index.php in web-root).

So, the following is what currently happens: http://localhost/foo/bar/baz

Is routed by Apache (through .htaccess) to: http://localhost/index.php?url=foo/bar/baz

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This works well, however, in Firefox I am able to do this: http://localhost/foo\ -> notice the backslash.

And Apache, instead of doing: /index.php?url=foo\

Emits a generic error page saying:

Object not found! The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again.

If you think this is a server error, please contact the webmaster.

Error 404 localhost开发者_运维知识库 Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1

Directly going to: http://localhost/index.php?url=foo\ works without issues, however.

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All the sites that I've seen on the internet seem to be able to handle backslashes gracefully (e.g., http://stackoverflow.com/tags/php\\\\\).

I consider this behavior a bug and I want to force Apache to forward backslashes correctly. Here's my .htaccess file in its entirety:

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?url=$1 [L]

How can I make this work properly?

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Edit: I just tried this on my webhost and this is handled properly by them. Makes me think it's some setting in httpd.conf.

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Probably need AcceptPathInfo off to not get those tolerated as forward slashes.

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I was just having this issue on WampServer on Windows. This page had the solution - the AllowEncodedSlashes option that RobertPitt mentions above is the correct one, but it must go in the http.conf file, inside a VirtualHost block, eg:

<VirtualHost *:80>
    AllowEncodedSlashes On
</VirtualHost>

It doesn't work in a .htaccess file.