Minification
Unlike CSS, the javascript is not automatically minified. This is because sometimes javascript minification can actually break your javascript (particularly if it contains errors). Browsers will often manage to figure out your broken javascript, but once minified, errors really cause problems.
You can enable minification by changing the "off" to "on" and saving the file. Wait about 30 seconds and then review your site in staging before pushing it to live.
We use the Google Closure compiler to verify and minify the output.
Updated 6 months ago