documentwebkitFullscreenElement

DocumentWebKit refers to the internal web rendering engine used by Apple's Safari web browser and other applications on Apple's operating system. It is a fork of the WebKit project, which originated from KHTML, the rendering engine used by the Konqueror web browser. DocumentWebKit is responsible for interpreting HTML, CSS, and JavaScript code to display web pages accurately and efficiently.

Over the years, Apple has diverged significantly from the main WebKit project, introducing its own optimizations and features into DocumentWebKit. This has led to differences in rendering behavior and performance compared to other browsers that use WebKit or its derivatives. Developers often need to be aware of these differences when creating web content that needs to display consistently across various browsers, including those using DocumentWebKit.

The engine plays a crucial role in the user experience on macOS, iOS, and iPadOS, powering not only Safari but also the web views embedded within many native applications. Its development focuses on speed, security, and compliance with web standards, though the ongoing divergence from upstream WebKit can sometimes present challenges for web developers aiming for cross-platform compatibility. Apple's continued investment in DocumentWebKit underscores its commitment to providing a robust and performant web browsing experience on its platforms.