In the menu Settings > Other settings > Head tag , you can add HTML code to the head tag of your Progressive Web App (PWA).
This code will be displayed on all your PWA pages.
You can for instance add meta tags in this field to declare your PWA to Google.
Caution ! You mustn't write plain text in this field!
You must fill-in this field with HTML code, or it will impact the display of your PWA.
If you don't know what a meta tag is, just leave the field empty.