Trailing Slash 301 Redirect Issue When ? Is In URL

Question

htaccess | 301 redirect | URI Issue

I recently applied this code to my htaccess to enforce the trailing slash on my URL:

#Trailing backslash
RewriteBase /
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^(.*)$ https://www.example.com/$1 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ $1/ [L,R=301]

The code works great at adding a / at the end of MOST URLs except for those with ? in the middle of the URL. Like below:

https://www.example.com/list-of-all-objects/search?keywords=test

This URL with the currently code that is stated above will change on load to this: https://www.example.com/list-of-all-objects/search/?keywords=test

When it should look like this: https://www.example.com/list-of-all-objects/search?keywords=test/

I have quickly learnt all of the code that I have applied does not work for two reasons.

1. They don't enforce the / - they just make it possible if its blocked
2. The term REQUEST_URI or $1 or $2 all don't include ?keyword= (in fact there is nothing that I can find that refers to this part of the URL so I can't include it correctly)

No matter what I do - I can't get a ? or anything after it to be placed before the /. HOW do I get the trailing slash to not be applied before the ? on keyword search but at the end of the URL and continue to be applied at the end of all the other URL's?

Other previously tried methods:

 # Force Trailing Slash
enter code hereRewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)([^/])$ http://%{HTTP_HOST}/$1$2/ [L,R=301]

Found here: .htaccess Rewrite to Force Trailing Slash at the end

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*[^/])$ /$1/ [L,R=301]

Found here: Htaccess: add/remove trailing slash from URL

<IfModule mod_rewrite.c>
 RewriteCond %{REQUEST_URI} /+[^\.]+$
 RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]
</IfModule>

Found here: http://www.paulund.co.uk/using-htaccess-to-force-trailing-slash

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1/ [L,R=301]

Found here: http://ralphvanderpauw.com/seo/how-to-301-redirect-a-trailing-slash-in-htaccess/

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !example.php
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ http://domain.com/$1/ [L,R=301]

Found here: http://enarion.net/web/htaccess/trailing-slash/

# Trailing slash check

# Don't fix direct file links
RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ $1/ [L,R=301]

Found here: https://moz.com/community/q/trailing-slash-at-end-of-url

# Always append a trailing slash
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !/$
RewriteRule . %{REQUEST_URI}/ [R=301,L]

Found here: https://craftcms.stackexchange.com/questions/9501/force-trailing-slash-on-urls

Below is my complete htaccess file contents:

RewriteEngine On

#Trailing backslash
RewriteBase /
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^(.*)$ https://www.example.com/$1 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ $1/ [L,R=301]


#HTTPS Redirects
RewriteCond %{HTTPS} off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond $1 !\.(gif|jpe?g|png)$ [NC]
RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d 
RewriteRule ^(.*)$ /index.php?/$1 [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* [QSA,L]

<IfModule mod_expires.c>
# Enable expirations
ExpiresActive On 
# Default directive
ExpiresDefault "access plus 1 month"
# My favicon
ExpiresByType image/x-icon "access plus 1 year"
# Images
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
# CSS
ExpiresByType text/css "access plus 1 month"
# Javascript
ExpiresByType application/javascript "access plus 1 year"
</IfModule>

Answer 1

Query_string is not part of match in RewriteRule.

To add a trailing slash to query strings, you can use :

RewriteCond %{QUERY_STRING} ([^/]+)$ [NC]
RewriteRule ^ %{REQUEST_URI}?%1/ [R,L]

EDIT :

As I already said, query strings can not be handled directly by a RewriteRule directive, so you need a separate rule to add trailing slash to query strings.

The example bellow adds a trailing slash to both parts of the url.

  RewriteEngine on

  #Add a trailing slash to uri
  RewriteCond %{REQUEST_URI} !/$
  RewriteRule ^ %{REQUEST_URI}/ [NC,L,R]
  #Add a trailing slash to query strings
  RewriteCond %{QUERY_STRING} ([^/]+)$ [NC]
 RewriteRule ^ %{REQUEST_URI}?%1/ [R,L]

This will change the following urls :

• http://example.com/file

to

• http://example.com/file/

Or

• http://example.com/file?q=foo

to

• http://example.com/file/?q=foo/

(Hope, this helps!)