What exactly “config.assets.debug” setting does?

Question

I have started development of simple rails application. After several hours work I have notices that somehow the deleted css is still applied to the web pages.

In o

Answer 1

This option's effect is well described in this post, but I'll summarize it here as well. The value of changing config.assets.debug lies in a compromise between page load time in development and ease of debugging.

Basically:

config.assets.debug = true: assets are served individually, organized just as you see them in development. Preprocessed languages like SASS or CoffeeScript will still show up as their target languages (i.e., CSS and JS, respectively).

config.assets.debug = false: assets are bundled into files like application.css and application.js. Error stack traces will likely not have the correct line number any more and it is harder to map those back to your original code.