mod_rewrite: remove trailing slash (only one!)

Question

I use mod_rewrite/.htaccess for pretty URLs.

I'm using this condition/rule to eliminate trailing slashes (or rather: rewrite to the non-trailing-slash-URL, by a 301 redirect; I'm doing this to avoid duplicate content and because I like URLs with no trailing slashes better):

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{HTTP_HOST} !^\.localhost$ [NC]
RewriteRule ^(.+)/$ http://%{HTTP_HOST}/$1 [R=301,L]

Working well so far. Only drawback:
it also forwards "multiple-trailing-slash"-URLs to non-trailing-slash-URLs.

Example:
http://example.tld/foo/bar////// forwards to http://example.tld/foo/bar
while I only want http://example.tld/foo/bar/ to forward to http://example.tld/foo/bar.

So, is it possible to only eliminate trailing slashes if it's actually just one trailing slash?

Sorry if this is a somewhat annoying or weird question!

Thanks.

Solution 1

the following rule will match any URL ending in a slash and remove all slashes from the end of it:

RewriteRule ^(.*)/+$ $1 [R=301,L]

Note: The currently accepted answer only works for http not https but this one works for both.

Solution 2

change the rewrite rule to:

RewriteRule ^(.+[^/])/$ http://%{HTTP_HOST}/$1 [R=301,L]

in English: match the start of the string, one or more anything, NOT a slash, a slash, the end.

Solution 3

Here is a mod-alias based solution to remove trailing slash from urls :

RedirectMatch ^/(.*?)/$ /$1

You can use the above Redirect in your htaccess or server.config file.

This will redirect /uri/ to */uri** .

Solution 4

^(.+[^/])/$

I.e. the forelast character must not be a slash.

View more solutions

Comments

[Ujjwal Singh]

Same question: stackoverflow.com/questions/19990838/…

[nickhar]

@steve The completed answer is obviously going to be worth the wait.

[Amir Ali Akbari]

It seems that the http://%{HTTP_HOST}/$1 should be http://%{HTTP_HOST}$1 otherwise an extra / is added to the beginning of new url.

[Just Lucky Really]

I've refreshed this page for over 2 years now waiting for the answer ... This is the literally the last thing I need to do before putting my website live ...

[aleemb]

Just noticed this today after so long. Maybe I should not have clarified to humour the other readers :)

[ironchicken]

The regex should match at least one character before /, so \(.+)/+$, otherwise you get an infinite redirect loop when requesting /.

[Daniel Dewhurst]

This worked for me, aleemb's answer didn't work as I'm using virtual hosts.