Permalink Fix & Disable Canonical Redirects

http://wordpress.org/extend/plugins/permalink-fix-disable-canonical-redirects-pack/

Use: WordPress Plugin
Contributors: Chris Cheney, Nick Schalk, Michael Szczepanski
Plugin Name: Permalink Fix & Disable Canonical Redirects Pack
Plugin URI: https://github.com/ccheney/permalink-fix-disable-canonical-redirects-pack
Tags: 500 server error, parsing error, ashurbanipal, canonical redirection, cnchost, concentric, endless loop, endless redirection, home page loop, htaccess, permalinks, xo communications, xohost, concentric
Author URI: https://github.com/ccheney/
Author: Chris Cheney
Requires at least: 2.3
Tested up to: 4.3.1
Stable tag: 1.0.4
Version: 1.0.4
License: GPLv2

This plugin makes WordPress' default permalinks behavior work on the Concentric/XO Communications shared hosting platform. It also disables the canonical redirection feature as it causes an endless redirection loop outside of wp-admin. This plugin also appears to resolve an issue with a recent release of WordPress 3.1 and IIS servers.

Description

This plugin ensures the REQUEST_URI variable is set during the initialization of WordPress, allowing permalinks to work correctly.

Installation

The REQUEST_URI variable is not set correctly by the server platform. This plugin builds each variation of REQUEST_URI by peicing together other available variables.

1. Upload the 'permalink-fix-disable-canonical-redirects-pack' folder to the 'wp-content/plugins/' directory.
2. Log into the WordPress dashboard http://example.com/wp-admin and activate the plugin.
3. Setup your .htaccess file as described below, this is the most important step.
4. Make sure the .htaccess file is setup properly. The server requires that you convert end of line characters to UNIX format (LF). Be sure to add a hard return after the last directive. See additional-instructions.rtf for a step-by-step.

RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

5. If for some reason you're using this plugin outside of the Concentric/XO shared hosting enviroment (assuming Apache) use the following .htaccess rules:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]
</IfModule>

Changelog

1.0.4

10/18/2015 Compatibility update

1.0.3

02/28/2011 Minor description & support URL tweaks.

1.0.2

02/17/2011 Fixed broken author support links. Added a description about canonical redirection.

1.0.1

01/07/2011 Added detailed instructions for users downloading the file directly instead of through the wp-admin interface. Added htaccess file example.

1.0

Final Release - 12/16/2010 Merging of the required disable canonical redirection plugin by Mark Jaquith

0.6

Plugin Development - 12/06/2010 Script was wrapped into a WordPress Plugin for future proofing and ease of use contributed by Nick Schalk

0.5

Internal Release - 03/20/2010 Initial REQUEST_URI script written