scenario: download introduction page written by html. Download needs to be triggered automatically after loading.
however, on iOS systems, the download will pop up a pop-up box whether or not to allow it.
so the question is, how does js monitor users to choose and cancel downloads?
where the logic that automatically triggers the download is
window.location.href = "itms-services://xxxxx/lhb.plist";
the box will pop up after running