JavaScript news — Web Standards

May 14
The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
May 13
Soon we can finally banish JavaScript to the ShadowRealm
A look at the TC39 ShadowRealm proposal for isolating JavaScript in clean execution contexts.
April 24
Your options for preloading images with JavaScript
Five approaches compared with their caching and CORS trade-offs.
April 20
Fully local code embeds
A web component for isolated code sandboxes without third-party embeds.
April 13
Progressive web components
An HTML-and-CSS-first library for building web components that hydrate with JS.
April 1
Native JSON modules are finally real
Import attributes syntax now works in browsers and runtimes without bundlers.
March 31
Form-associated custom elements in practice
Retrofitting AgnosticUI with ElementInternals and form validation.
March 18
Temporal: the 9-year journey to fix time in JavaScript
From TC39 proposal to Stage 4, with a shared Rust implementation across engines.
March 17
Introducing view-transitions-mock, a non-visual polyfill for same-document view transitions
A spec-compliant JavaScript implementation that works across all browsers.
February 27
Making WebAssembly a first-class language on the web
Component model could remove JS glue, simplify loading, and speed up web API access.
February 16
State of React 2025 results are live
React 19, CRA deprecation, CVEs and RSC debates, and AI tooling shaping the ecosystem.
February 11
Debugging with AI: can it replace an experienced developer?
LLM can fix symptoms fast, but it still struggles with root causes.