ConstThe absolute root URL of the site, with a trailing slash.
The absolute base URL the app is published at, with a trailing slash, as <base> states it, or the site root.
The app name, as the <title> tag states it, or undefined if the tag is missing or empty.
The URL of the app icon, as the <link rel="icon"> tag states it, or undefined if the tag is missing.
The app description, as the <meta name="description"> tag states it, or undefined if missing or empty.
The app copyright, as the <meta name="copyright"> tag states it, or undefined if missing or empty.
What the app says about itself, as its document states it.
Read once on import and immutable thereafter, so a later edit to the document is never picked up.