Re:Google AMP – A 70% drop in our conversion rate
by londons_explore on Thursday August 09, 2018 @06:09AM
(#17722911)
When surver push of resources gets better supported by browsers, I bet AMP will be updated to change this restriction.
However, if you have non-render blocking CSS, or CSS that's used for below the fold or generally lower down the page content, "only render critical CSS inline" is usually coupled with "and then have the rest of your CSS in an external stylesheet". Which you are not allowed to do.
Accordingly, it's ALL inline, all the time.