August 2019 • Macworld 103HELP DESK12 added AirDrop as something you can manage
via Screen Time, and some parents (including your
correspondent) uses Screen Time with a passcode
to mediate access for their child.
In iOS 12, open Settings > Screen Time
Content & Privacy Restrictions, tap the switch
to turn it on, then tap Allowed Apps. You can tap
AirDrop to disable it.
Troubleshoot and fix strange
website errors with macOS Safari
Modern websites have a legitimate reason to push
a lot of data to your browser that it retains for future
sessions. This can vary from a browser ‘cookie’
that maintains a session for a short period of time
to other identifiers and even databases that are
pulled up, but only when you visit the site again.
This can snowball into ‘cruft’, a catch-all term
for digital code you don’t want. In particular, I
see a problem with it in Safari, and have a way to
troubleshoot and fix it.
You’ll realize something is amiss is when you
visit a website you use routinely and receive an
odd error. You try closing windows, quitting the
browser, even restarting your Mac, and the problem
persists. My credit-union site, for instance, will
throw up a server error that says my headers are
too long and malformed. Thank you very much,
but my headers are just fine.
Rather, there’s an interaction between data
stored on behalf of the credit union by its servers
and Safari sending that data back (or consulting it