It’s really hard to architect around http push. Say I have a website in Python/Django, where I know that a page uses certain images. In order to use http push,

It’s really hard to architect around http push. Say I have a website in Python/Django, where I know that a page uses certain images. In order to use http push, my app would need to stream those images itself, rather than let a CDN or even Nginx do it. I suppose that some solution could have been implemented so that my Python app can tell nginx to stream certain static resources over a given connection… but the tools for that never surfaced. Most HTTP frameworks don’t support push.