The HTTP X-Forwarded-For (XFF) request header is a de-facto standard header for identifying the originating IP address of a client connecting to a web server through a proxy server.... View this page on GitHub • Report...
Learn about the PerformanceResourceTiming interface, including its properties and methods, code examples, specifications, and browser compatibility.... View this page on GitHub • Report...
Learn about the NavigationPreloadManager interface, including its methods, code examples, specifications, and browser compatibility.... View this page on GitHub • Report...
Events are fired to notify code of "interesting changes" that may affect code execution. These can arise from user interactions such as using a mouse or resizing a window, changes in the state of the underlying environment (e.g. low battery or media events from the operating system), and other causes.... View this page on GitHub • Report...
WebAssembly is a type of code that can be run in modern web browsers — it is a low-level assembly-like language with a compact binary format that runs with near-native performance and provides languages such as C/C++, C# and Rust with a compilation target so that they can run on the web. It is also designed to run alongside JavaScript, allowing both to work together.... View this page on GitHub • Report...
This chapter introduces collections of data which are indexed by a key; Map and Set objects contain elements which are iterable in the order of insertion.... View this page on GitHub • Report...
Learn how the CSS `:not()` pseudo-class behaves when multiple selectors are passed as argument....Introducing Baseline: a unified view of stable web features Stay...