[oarsinsync]

Not the perfect solution, but I think changing your user-agent to iOS makes youtube deliver x264 instead of vp9

[PascLeRasc]

This Chrome extension will do it in a cleaner way: https://chrome.google.com/webstore/detail/h264ify/aleakchihd...

[oarsinsync]

Does anyone know of a similar Safari extension? Battery life remains a concern, and switching from vp9 to x264 is great, but then having to deploy Chrome instead feels like a 1 step forward, 2 steps backwards situation.