Doesn't work in Safari

[jasonbarry]

Do you want to request a feature or report a bug?
Bug

What is the current behavior?
Doesn't work in Safari

What is the expected behavior?
I'd expect it to work in Safari

Which versions of zoom-level, and which browser / OS / node version are affected by this issue? Did this work in previous versions of zoom-level?
I'm testing on https://841ns.csb.app in Safari 13.0.4 on Mac 10.14.6. Nothing happens when I zoom in or out of the page, even after clicking the Recalc button. Works as expected in Chrome.

[xobotyi]

I'm not able to investigate it because I have no macos based devices.

[jasonbarry]

@xobotyi the problem is that in Safari, devicePixelRatio doesn't change when you zoom in and out. It is instead used to refer to the constant hardware pixel density of the screen – for example, on my Retina MacBook Pro, the value is always a constant 2. On older non-Retina devices, the value is 1. The newest iPhone 11 Pro has a devicePixelRatio of 3.

[hsh2001]

Same. Why don’t you detect touch start/move to check zoom gestures for iOS Safari?

[xobotyi]

@hsh2001 because it is impossible to detect zoom level this way, only the fact that pitch has occurred