September 2019 web platform update

Now widely available on the web platform
Widely available

Clipboard events: The "copy", "cut", and "paste" events fire on elements when the user starts an action with the clipboard. Learn more.
column-fill: The column-fill CSS property sets the distribution of content across columns in a multi-column layout. Learn more.
Fetch: The fetch() method makes asynchronous HTTP requests. Learn more.
<input type="range">: The <input type="range"> element allows the user to choose a value using a slider widget. Learn more.
Multi-column layout: Multi-column layout flows an element's content across one or more columns in a single row, without affecting the display property of its children. Learn more.
Selection: The Selection API controls and modifies user text selections within the page. Learn more.
writing-mode: The writing-mode CSS property sets whether text is laid out horizontally or vertically, and left to right, or right to left. Learn more.

Intl.PluralRules: The Intl.PluralRules API creates a locale-aware object that tells you which of the language's pluralization rules apply based on a given number. Learn more.
Print events: An alternative to @media print queries, the beforeprint and afterprint events allow you to change the page for printing and and restore the page after printing. Learn more.
Sticky positioning: The position: sticky CSS declaration positions an element in the normal flow until it crosses a specified threshold, at which points it becomes fixed (stuck) at that position. Learn more.
touch-action: The touch-action CSS property sets whether an element on a touch screen can be panned or pinched to zoom. Learn more.