By default, iOS browsers block popups.
As we open a new tab when we generate a PDF for your prescription, labs or other notes, the browser will block that as well.
Here's what you need to do:
Go to Settings
Block Pop-ups > Disable the toggle (it should be gray)
Go to Safari and download the prescription. It will work now.
Tap the 3 dots
Tap "Content Settings"
Disable "Block Pop-ups" (Gray Color)
Download the prescription and it will now work.