I need to debug an HTML app on ipad. I used to be able to connect ipad by USB cable to my mac and it would show in the \"Develop\" menu in Safari. I have two ipads now - one w
I experienced the same issue today with iOS 13 and Mac OS 10.14 (Mojave).
What fixed it for me was simply installing a required Update in MacOS.
However, it is not an update that is installed via system preferences but only via a dialog that appears when trying to connect the devices.
Unfortunately the dialog appeared behind all other windows and could not be tabbed to. Thus I did not see it at all until I closed all other windows.
Regarding the dialog itself - here some information from Apple support:
https://support.apple.com/en-us/HT208831