Declarative partial updates | Blog | Chrome for Developers
Published: May 19, 2026 The web has long since moved on from the static, document-driven medium that it started as. Modern, rich web apps are used by everyone for many reasons, from communicating, purchasing, consuming rich content, to managing our complex lives. HTML, despite all its advances, is still delivered in-order in a top-to-bottom fashion with little regard for when content is ready or w
<geolocation> HTML 要素の導入 | Blog | Chrome for Developers
公開日: 2026 年 1 月 13 日 Chrome 144 以降では、新しい <geolocation> HTML 要素を使用できます。この要素は、サイトがユーザーの位置情報をリクエストする方法の大きな変化を表しています。スクリプトでトリガーされる権限プロンプトから、宣言的でユーザー アクション指向のエクスペリエンスに移行します。これにより、権限の状態とエラーの処理に必要なボイラープレート コードが削減され、ユーザーの意図をより強く示すシグナルが提供されるため、ブラウザの介入（サイレント ブロックなど）を回避できます。 このリリースは、広範な実環境でのテストと、ウェブ標準コミュニティとの厳格な議論の結果です。この要素の有用性を理解するには、その開発の経緯と、その設計を推進したデータを検証することが重要です。 汎用 <permission> から特定の <geolocation> <ge
Request for developer feedback: customizable select | Blog | Chrome for Developers
Styling form controls like the <select> element has been reported as a top developer pain point for years, and we've been working on a solution. While this work is complex and has taken a long time to get right, we're getting very close to landing this feature. A customizable version of the select element is officially in Stage 2 in the WHATWG, with strong cross-browser interest and a prototype fo
Browser-level image lazy loading for the web | Articles | web.dev
You can use the loading attribute to lazy-load images without the need to write custom lazy-loading code or use a separate JavaScript library. Here's a demo of the feature: Lazy-loaded images load as the user scrolls through the page. This page walks through the details of implementing lazy-loading in the browser. Why browser-level lazy loading? According to the HTTP Archive, images are the most-r
Native image lazy-loading for the web!
April 6, 2019 In this post, we’ll look at the new loading attribute which brings native <img> and <iframe> lazy-loading to the web!. For the curious, here’s a sneak preview of it in action: <img src="celebration.jpg" loading="lazy" alt="..." /> <iframe src="video-player.html" loading="lazy"></iframe> We are hoping to ship support for loading in ~Chrome 75 and are working on a deep-dive of the feat
Prevent DOM-based cross-site scripting vulnerabilities with Trusted Types | Articles | web.dev
DOM-based cross-site scripting (DOM XSS) happens when data from a user-controlled source (like a username, or a redirect URL taken from the URL fragment) reaches a sink, which is a function like eval() or a property setter like .innerHTML that can execute arbitrary JavaScript code. DOM XSS is one of the most common web security vulnerabilities, and it's common for dev teams to accidentally introdu
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