📃 February 2024 release notes

Newly available

The following features are newly available:

Declarative shadow DOM: The shadowrootmode attribute on <template> creates a shadow root without the use of JavaScript. It is a declarative alternative to the attachShadow() method.

The following features are now widely available:

tab-size: The tab-size CSS property sets the width of the tab character.
Visual viewport API: The visualViewport API provides a way to query and modify the user-visible viewport of a web page.

The following features are now available in Chrome:

Read unsanitized clipboard data: The optional formats.unsanitized parameter of the navigator.clipboard.read() method reads unsanitized text/html data from the system clipboard.
Iterator methods: The Iterator object is an abstract base for objects that implement the iterator protocol. It provides methods common to built-in iterators, such as filter(), find(), map(), and reduce(). You can also use the static method Iterator.from() to convert an existing iterable into an Iterator.
Set methods: The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.
Storage buckets: The navigator.storageBuckets API allows you to organize locally stored data into groups called storage buckets. Each bucket can have different settings, allowing the browser to manage and delete buckets independently rather than applying the same treatment to all.

The following features are now available in Chrome Android:

Read unsanitized clipboard data: The optional formats.unsanitized parameter of the navigator.clipboard.read() method reads unsanitized text/html data from the system clipboard.
Iterator methods: The Iterator object is an abstract base for objects that implement the iterator protocol. It provides methods common to built-in iterators, such as filter(), find(), map(), and reduce(). You can also use the static method Iterator.from() to convert an existing iterable into an Iterator.
Set methods: The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.
Storage buckets: The navigator.storageBuckets API allows you to organize locally stored data into groups called storage buckets. Each bucket can have different settings, allowing the browser to manage and delete buckets independently rather than applying the same treatment to all.

The following features are now available in Edge:

Read unsanitized clipboard data: The optional formats.unsanitized parameter of the navigator.clipboard.read() method reads unsanitized text/html data from the system clipboard.
Iterator methods: The Iterator object is an abstract base for objects that implement the iterator protocol. It provides methods common to built-in iterators, such as filter(), find(), map(), and reduce(). You can also use the static method Iterator.from() to convert an existing iterable into an Iterator.
Set methods: The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.
Storage buckets: The navigator.storageBuckets API allows you to organize locally stored data into groups called storage buckets. Each bucket can have different settings, allowing the browser to manage and delete buckets independently rather than applying the same treatment to all.