In a few hours, I'm launching a very large website that relies heavily on LoadCSS(). Page load times have been excellent in the pre-public phase, even though ou

In a few hours, I'm launching a very large website that relies heavily on LoadCSS(). Page load times have been excellent in the pre-public phase, even though our critical styles contain a mountain of Autoprefixer-generated flexbox prefixes. My understanding is that all of this will become an antipattern once we can support http/2. For today, however, it provides a very real performance boost.