Why is gzip not enabled for js file?

Question

JavaScript

Good time. I continue to develop a plugin to speed up the loading of the site. I'm doing tests on
https://developers.google.com/speed/pagespeed/insi...
Now a new misfortune
The following is written in htaccess

<ifmodule mod_deflate.c>
AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript text/javascript
</ifmodule>

All scripts, pictures and styles are loaded with compression. And xdan.ru/media/plg_jspeedup/63135a6a1167dd634d457c9... is loaded without it.
Why can this happen?

Answer 1

Maybe because the script is on one domain, and the site itself is on another? And of course, your server will only compress the files that it has, and the browser downloads the script separately.

Answer 2

Add this before your code:

<FilesMatch "\\.(js|css|woff|ttf|eot|otf)$">
  SetOutputFilter DEFLATE
</FilesMatch>

If mod_deflate is installed and activated in Apache, then it should help.