How to autocomplete two-factor authentication codes with a single HTML attribute

Today’s tip comes courtesy of Tomek Sułkowski on Twitter. If you manage an app that supports two-factor authentication, either through an app or SMS, you can make it easy for users to autocomplete their unique code. The trick is a single HTML attribute: [autocomplete="one-time-code"]. <label for="two-factor-auth">Authentication Code</label> <input id="two-factor-auth" autocomplete="one-time-code"> Tomek setup a demo here. (I made a fork on CodePen in case his goes down or you want to fork and test yourself).