Set up Speedster Advanced in the Magento backend
Go to System > Configuration > Developer to get started.
Exclude from Minify
This field allows you to exclude specific file(s) from the minification process, while still including the merged file in the original file loading order. It's not possible to exclude entire file directories.
The default setting is to exclude js/mage/adminhtml/sales/packaging.js
because this known to cause issues. We recommend that you keep this as a default exclusion (you can still add additional exclusions).
Certain files can cause issues when being minified and you want to exclude them from minification. A non-exclusive list of reasons include:
2. CSS Settings
Merge CSS Files
Select “Yes” to enable merging of CSS files under 'CSS Settings'.
Exclude from Minify
This field allows you to exclude specific file(s) from the minification process, while still including the merged file in the original file loading order. Enter the relative URL of any CSS files that you wish to exclude, separated by a comma. It's not possible to exclude entire file directories.
In Magento’s developer mode, Speedster Advanced will include the file names of the merged files in the combined output for easier troubleshooting.
With version 1.4 Magento introduced the concept of static vs skin files (internally). The distinction is made as follows:
Speedster Advanced uses this internal distinction to separate the files into two files. The idea behind this is being able to load all library files and other files which you will require throughout the whole store only once. It is best described
To benefit from this Speedster Advanced feature you will need to optimise your theme. Everything that you want to have loaded on every page should reside in the /js folder (think libraries) and loaded via the default handle. All remaining files should live in the skin directories and included via a skin_js directive.
Currently the same separation does not make as much sense for CSS. Our current advice is to load all CSS as skin_css on the first load.