Redirect URLs with a trailing slash to URLs with no trailing slash via htaccess rule with [QSA,L] - apache

Question

Recently I broke ties with WordPress and migrated all of my site's content to my own custom-made CMS. All works great except for one thing. All previous links to my site's blog posts have a trailing slash. Since none of my current URLs have a trailing slash, the previous links no longer work and my SEO is nearly non-existent. I've been attempting to find an htaccess rule that will redirect all trailing slash URLs to URLs with no trailing slash, but as of now, nothing works.

Answer 1

Use this redirect rule as your very first rule to remove trailing slash:
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)/$ /$1 [NE,R=301,L]

Answer 2

You don't want to remove it 100%for SEO in WordPress.#
But this will show you how to if you want that. WordPress "/" fixes. My WordPress Gist
Can convert so it's helpful
Config File: nginx.conf
...
location /mirror/foo/ {
...
rewrite ^(.*[^/])$ $1/ permanent;
...
}
...
Description WordPress "/" PHP fixes
Retrieve trailing slash string, if blog set for adding trailing slashes.
Conditionally adds a trailing slash if the permalink structure has a trailing slash, strips the trailing slash if not. The string is passed through the ‘user_trailingslashit’ filter. Will remove trailing slash from string, if blog is not set to have them.
Usage
<?php user_trailingslashit( $string, $type_of_string ); ?>
Parameters
$string
(string) (false) URL with or without a trailing slash.
Default: None
$type_of_url
(string) (false) The type of URL being considered (e.g. single, category, etc) for use in the filter.
Default: None
Return Value (string)
Adds/removes a trailing slash based on the permalink structure.
codex.wordpress. /Function_Reference/user_trailingslashit
2.
If you want to add "/"
<?php trailingslashit( $string ) ?>
Examples
<?php
$path = trailingslashit( '/home/julien/bin/dotfiles' );
?>
$path will now contain:
/home/julien/bin/dotfiles/
(Notice the trailing slash)
https://codex.wordpress.org/Function_Reference/trailingslashit
3.
This is new
The most important part of any test is the assertion. An assertion is a comparison between the value you expect to get from the system and the value that you actually get. The very simplest tests may consist of nothing but a single assertion. Example:
public function test_trailingslashit_should_add_slash_when_none_is_present() {
$this->assertSame( 'foo/', trailingslashit( 'foo' ) );
}
The assertSame() method accepts two parameters: the expected value (in this case, the hardcoded string 'foo/'), and the actual value (the value returned by trailingslashit()).
An annotated list of common assertions can be found below.
https://make.wordpress.org/core/handbook/testing/automated-testing/writing-phpunit-tests/#assertions
Try these rules: (in www.example.com's server block) rewrite ^/$ http://example.com permanent break; rewrite ^/main(.*)$ http://example.com$1 permanent break; rewrite ^(.*)$ http://blog.example.com$1 permanent; Make sure you reload nginx.
With this config:
http://www.example.com/ *redirects to
http://example.comt -
http://www.example.com/main/something redirects to
http://example.com/something - Everything else redirects to
http://blog.example.com/