How to tell if Safari is using HTTP2?

Question

I tried all tabs in Web Inspector and didn't find anything useful. Google does not turn up any way either.

Ingeborgingelbert

Answer 1

If you switch to the Network tab in the inspector and then open the right details sidebar, you can see the Header information of request and response:

Itagaki

Ah! How could I miss it… Thanks a lot, Harald! – Ingeborgingelbert

It looks like as of macOS Monterey 12.2 Beta (21D5039d) & Safari Version 15.3 (17612.4.8.1.1), this is now in the Sources tab not the Network tab. I think this was likely changed in a previous version, but this is the version I'm running. So if it's not in the Network tab, check in the Sources tab. – Basra