Ben takes us on a journey inside the mind of a browser (Chrome in this case). It’s all about priorities when it comes to the critical path.
This solution to the mobile tap delay by the WebKit team sounds like what I was hoping for:
touch-action: manipulation;on a clickable element makes WebKit consider touches that begin on the element only for the purposes of panning and pinching to zoom. This means WebKit does not consider double-tap gestures on the element, so single taps are dispatched immediately.
It would be nice to know whether this has been discussed with other browser makers or if it’s another proprietary addition.
I think Chrome is doing the right thing by removing the 300 millisecond tap delay on sites that set width=device-width — it’s certainly better than only doing it on sites that set user-scalable=no, which felt like rewarding bad behaviour.
I must remember to allow plenty of time at the airport when I'm leaving San Francisco.