Apache GZip not working text files and js files? - php

Question

I am trying to add GZip compression using Apache mod_deflate module. All contents get compressed except text files(".txt"). Also facing issues when compressing HTML files and JS files.
For Example: Let's say a script file ("main.js") hosted on http://example.com
The contents of file:
In case 1:
// Contents of main.js
console.log("Hello World");
console.log("Hello World");
console.log("Hello World");
console.log("Hello World"); console.log("Hello World");
In case 2:
// Contents of main.js
Hello World! Hello World!
Hello World! Hello World! Hello World!
Hello World! Hello World! Hello World! Hello World!
Random Contents
In case 1, When I visit http://example.com/main.js, it shows content-encoding: gzip.
In case 2, When I visit http://example.com/main.js, it doesn't show any content-encoding: gzip header.
So the GZip only works in Case 1 for .js files.
GZip not working on text files(.txt extension) and not showing any content-encoding: gzip header.
// .htaccess code
<IfModule mod_deflate.c>
<IfModule mod_mime.c>
AddType text/plain .txt
</IfModule>
SetOutputFilter DEFLATE
</IfModule>
My software list
Apache Version - 2.4.39
PHP Version - 7.3
OS - Windows 10
Software - Wamp 64Bit

Answer 1

If you add default mod_deflate and mod_gzip conf in .htaccess file some changes?
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font
AddOutputFilterByType DEFLATE application/x-font-opentype
AddOutputFilterByType DEFLATE application/x-font-otf
AddOutputFilterByType DEFLATE application/x-font-truetype
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE font/otf
AddOutputFilterByType DEFLATE font/ttf
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
# Remove browser bugs (only needed for really old browsers)
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
Header append Vary User-Agent
</IfModule>
<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$
mod_gzip_item_include mime ^application/x-javascript.*
mod_gzip_item_include mime ^text/.*
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_include handler ^cgi-script$
</IfModule>