Haha, sorry, that was me. I was eating my words, because it looks like there is support! The experiments described in this post were conducted early this year,

Haha, sorry, that was me. I was eating my words, because it looks like there is support! The experiments described in this post were conducted early this year, and it looks like those developments are fairly new? I just discovered this too: https://github.com/GoogleChrome/http2push-gae https://github.com/GoogleChrome/http2push-gae Is this new-ish capability documented somewhere?