I'm not sure if this is a quite a bug since it may not appear when bootstrapping but it appears that this plugin adds code to the 'head' instead of the 'head-footer'.
When you place code in the 'head' you are injecting it before the included CSS files which causes chrome to not be able to async download the CSS files.
I'm not sure if this is a quite a bug since it may not appear when bootstrapping but it appears that this plugin adds code to the 'head' instead of the 'head-footer'.
When you place code in the 'head' you are injecting it before the included CSS files which causes chrome to not be able to async download the CSS files.
See https://developers.google.com/speed/pagespeed/module/filter-css-above-scripts https://stackoverflow.com/questions/9271276/is-the-recommendation-to-include-css-before-javascript-invalid
This error came up as a warning in google chrome page speed audit FYI.