Chapter 15: Scripting and Interactivity| svgwg.org
HTML| html.spec.whatwg.org
HTML| html.spec.whatwg.org
The Popover API provides developers with a standard, consistent, flexible mechanism for displaying popover content on top of other page content. Popover content can be controlled either declaratively using HTML attributes, or via JavaScript.| MDN Web Docs
This specification defines an interface for web applications to access the complete timing information for navigation of a document.| www.w3.org
Newline normalizations in form submission| The WHATWG Blog