Safari ignoring tabindex

Question

I have 2 buttons next to a textbox and another textbox after the 2 buttons. The tabindex for the first textbox is 1000, the first button is 1001 and the second button is 10

Answer 1

For those like me also looking how to enable this in browserstack: simply click the word "Safari" in the top left button of the screen, then you can select Preferences > Advanced > Press tab (as mentioned in https://stackoverflow.com/a/1914496/11339541)