.htaccess Internal Server Error while enabling Gzip - php

Question

I am trying to enable Gzip compression on my wordpress website. But when i try to add the compression code, i am getting the following error.
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster#coachhire4u.com to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
Apache/2.4.18 (Unix) OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 PHP/5.5.31 Server at www.coachhire4u.com Port 80
My .htaccess file,
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^/customer/quote/payment/
RewriteRule (\d+)/(\d+) http://www.coachhire4u.com/?c4u_payment_id=$1
[L,R=301]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
Compression code
# Compress HTML File, CSS File, JavaScript File, Text File, XML File and Fonts
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE font/otf
AddOutputFilterByType DEFLATE font/ttf
Please help me to resolve this issue. I know there are similar posts, but none of them seem to help
thanks

Answer 1

There are different approchaes of achieving compression. Which one to use depends on the capabilities/setup of your server. It's always a good idea to surround blocks with <ifModule></ifModule> where possible, in order to prevent 500 status errors.
There's a good chance that the following will work on your local machine as well as on your server. However, with the sparse informatione provided, it's not possible to give a definite answer. But I'll gladly update this answer if this does not work and you can provide further debugging information.
<ifModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_item_include file .(html?|txt|css|js|json|php|pl|svg)$
mod_gzip_item_include handler ^cgi-script$
mod_gzip_item_include mime ^text/.*
mod_gzip_item_include mime ^application/x-javascript.*
mod_gzip_item_include mime ^application/json.*
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</ifModule>
<ifModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/xml text/css text/plain
AddOutputFilterByType DEFLATE image/svg+xml application/xhtml+xml application/xml
AddOutputFilterByType DEFLATE application/rdf+xml application/rss+xml application/atom+xml
AddOutputFilterByType DEFLATE text/javascript application/javascript application/x-javascript application/json
AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-otf
AddOutputFilterByType DEFLATE font/truetype font/opentype
</ifModule>
AddType image/svg+xml svg svgz
AddEncoding gzip svgz

Answer 2

It might be a bit late, but I hope this helps.
I fixed my error by going to httpd.conf for my Apache server configuration and uncommenting the lines containing mod_filter.so and mod_deflate.so.