How to create a non-normal file extension?

Question

css

All shalom! How to create such a file? /css/al/common.css?69194857651
and for css to work on the site

Answer 1

as you were told above, read about the get parameters, this is nothing more, the file on the server is called
common.css, and ?69194857651 is just a get parameter, you can also write anything there.
For example, when I edit styles or scripts, I add a "version" to reload the changed styles and scripts, and not from the cache, but both files are on the server as style.css and script.js
/app/templates/assets/style.css
/app/templates/assets/style.css?v = 0.013
/app/templates/assets/style.css?69194857651

Answer 2

https://habr.com/en/post/309306/

Answer 3

What is a GET parameter