If you see JavaScript required to sign in error when using OneDrive, Skype, Teams or Office 365 apps, enable JavaScript in Chrome, Firefox, Edge.

To enable JavaScript, go into the Settings app on your iPhone, click "Safari," then "Advanced," and swipe the JavaScript button to the right so it appears green. Here's a full breakdown with pictures.

A few days ago, developer Felix Krause shared a detailed report on how mobile apps can use their own in-app web browser to track user data. Now Krause is back with a new tool that lets anyone see ...