iOS 13 cause iPad to set "request desktop mode" for all website by default

Steps to Reproduce

have an iPad in iOS 13.2.3

open settings > safari > request desktop website > all websites

Current Result

request desktop website is set to all website, which cause an iPad user string to appear as a macbook-type device with a user-string such as:

5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Safari/605.1.15

Expected Result

ZK relies on the user-string to identify the device as a mobile device, with a user-string such as:

5.0 (iPad; CPU OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1

Debug Information

Not a ZK bug, but will affect designers ability to work with Apple-based mobile devices

might also be happening on iphone, but no device to test

Workaround

no ZK / server-based workaround available at the moment

on device:

Use other browser such as Chrome for iOs, Firefox, etc ,

Alternative: disable setting in Settings > Safari > Request Desktop Page > All website {set to disabled}