Web Baseline Bot

WebRTC statistics on Webplatform Feature Explorer The RTCPeerConnection.getStats(), RTCRtpSender.getStats(), and RTCRtpReceiver.getStats() methods return detailed information about the status, performance, network, and media for a given WebRTC conne...

Widely available: WebRTC statistics

Description: The RTCPeerConnection.getStats(), RTCRtpSender.getStats(), and RTCRtpReceiver.getStats() methods return detailed information about the status, performance, network, and media for a given WebRTC conne...

Sanitizer API on Webplatform Feature Explorer The parseHTML() method for the Document interface and the setHTML() methods for the Element and ShadowRoot interfaces parse and insert HTML into the DOM in a way that can prevent cross-site scripting...

Limited: Sanitizer API

Description: The parseHTML() method for the Document interface and the setHTML() methods for the Element and ShadowRoot interfaces parse and insert HTML into the DOM in a way that can prevent cross-site scripting...

Partitioned cookies on Webplatform Feature Explorer Partitioned cookies allow you to opt a cookie into partitioned storage, with a separate cookie jar per top-level site. Also known as Cookies Having Independent Partitioned State or CHIPS.

Limited: Partitioned cookies

Description: Partitioned cookies allow you to opt a cookie into partitioned storage, with a separate cookie jar per top-level site. Also known as Cookies Having Independent Partitioned State or CHIPS.

font-variant-emoji on Webplatform Feature Explorer The font-variant-emoji CSS property sets the default presentation for emoji characters.

Limited: font-variant-emoji

Description: The font-variant-emoji CSS property sets the default presentation for emoji characters.

<dialog closedby> on Webplatform Feature Explorer The closedby HTML attribute for <dialog> sets which user actions close a dialog. For example, closedby="any" allows the dialog to be closed by clicking outside of it.

Limited: <dialog closedby>

Description: The closedby HTML attribute for <dialog> sets which user actions close a dialog. For example, closedby="any" allows the dialog to be closed by clicking outside of it.

Cookie store on Webplatform Feature Explorer The CookieStore interface is an asynchronous and promise-based API for managing cookies. It does not rely on document and so is available to service workers as well.

Limited: Cookie store

Description: The CookieStore interface is an asynchronous and promise-based API for managing cookies. It does not rely on document and so is available to service workers as well.

abs() and sign() on Webplatform Feature Explorer The abs() and sign() CSS functions compute the absolute value or the sign of the input.

Limited: abs() and sign()

Description: The abs() and sign() CSS functions compute the absolute value or the sign of the input.

Trusted types on Webplatform Feature Explorer Trusted types allow you to lock down insecure parts of the DOM API and prevent client-side cross-site scripting (XSS) attacks.

Limited: Trusted types

Description: Trusted types allow you to lock down insecure parts of the DOM API and prevent client-side cross-site scripting (XSS) attacks.

Sourcemap header on Webplatform Feature Explorer The Sourcemap HTTP response header links generated code to a source map, so the browser shows the original source in a debugger. This makes it easier to work with minified or transpiled code.

Widely available: Sourcemap header

Description: The Sourcemap HTTP response header links generated code to a source map, so the browser shows the original source in a debugger. This makes it easier to work with minified or transpiled code.

Scroll snap events on Webplatform Feature Explorer The scrollsnapchanging and scrollsnapchange events fire when a scroll gesture changes the selected scroll snap target.

Limited: Scroll snap events

Description: The scrollsnapchanging and scrollsnapchange events fire when a scroll gesture changes the selected scroll snap target.

resize (CSS property) on Webplatform Feature Explorer The resize CSS property sets whether an element can be resized by the user, and on which axes.

Limited: resize (CSS property)

Description: The resize CSS property sets whether an element can be resized by the user, and on which axes.

<link rel="modulepreload"> on Webplatform Feature Explorer The rel="modulepreload" attribute for the <link> HTML element indicates that a module script should be fetched, parsed, and compiled preemptively, and stored for later execution.

Newly available: <link rel="modulepreload">

Description: The rel="modulepreload" attribute for the <link> HTML element indicates that a module script should be fetched, parsed, and compiled preemptively, and stored for later execution.

MathML on Webplatform Feature Explorer MathML, or the Mathematical Markup Language, describes mathematical notation, such as expressions and formulas. Also known as MathML Core.

Widely available: MathML

Description: MathML, or the Mathematical Markup Language, describes mathematical notation, such as expressions and formulas. Also known as MathML Core.

<link rel="preload"> on Webplatform Feature Explorer The rel="preload" attribute for the <link> HTML element requests resources, such as images or style sheets, that the page needs soon, so the browser may prioritize them for loading before rendering b...

Widely available: <link rel="preload">

Description: The rel="preload" attribute for the <link> HTML element requests resources, such as images or style sheets, that the page needs soon, so the browser may prioritize them for loading before rendering b...

<link rel="prefetch"> on Webplatform Feature Explorer The rel="prefetch" attribute for the <link> HTML element is a hint to the browser that the user is likely to navigate to a resource, so the browser should preemptively fetch and cache the resource.

Limited: <link rel="prefetch">

Description: The rel="prefetch" attribute for the <link> HTML element is a hint to the browser that the user is likely to navigate to a resource, so the browser should preemptively fetch and cache the resource.

<link rel="dns-prefetch"> on Webplatform Feature Explorer The rel="dns-prefetch" attribute for the <link> HTML element is a hint to the browser that the page or user is likely to request resources from another domain, so the browser should preemptively reso...

Limited: <link rel="dns-prefetch">

Description: The rel="dns-prefetch" attribute for the <link> HTML element is a hint to the browser that the page or user is likely to request resources from another domain, so the browser should preemptively reso...

ImageBitmapRenderingContext on Webplatform Feature Explorer The ImageBitmapRenderingContext API is the "bitmaprenderer" rendering context for the <canvas> element. It is commonly used to transfer frames from an OffscreenCanvas to a user-visible <canvas> eleme...

Widely available: ImageBitmapRenderingContext

Description: The ImageBitmapRenderingContext API is the "bitmaprenderer" rendering context for the <canvas> element. It is commonly used to transfer frames from an OffscreenCanvas to a user-visible <canvas> eleme...

if() on Webplatform Feature Explorer The if() CSS function is an inline conditional value that returns a value based on a set of conditions.

Limited: if()

Description: The if() CSS function is an inline conditional value that returns a value based on a set of conditions.

Custom highlights on Webplatform Feature Explorer Custom highlights style arbitrary text ranges, without adding extra elements to the DOM.

Limited: Custom highlights

Description: Custom highlights style arbitrary text ranges, without adding extra elements to the DOM.

Federated credential management on Webplatform Feature Explorer The IdentityCredential API delegates authentication to a third-party identity provider, instead of using third-party cookies. Also known as FedCM.

Limited: Federated credential management

Description: The IdentityCredential API delegates authentication to a third-party identity provider, instead of using third-party cookies. Also known as FedCM.

createImageBitmap on Webplatform Feature Explorer The createImageBitmap() global method creates an ImageBitmap object from a source such as an image, SVG, blob, or canvas. An ImageBitmap object represents pixel data that can be drawn to a canvas wit...

Widely available: createImageBitmap

Description: The createImageBitmap() global method creates an ImageBitmap object from a source such as an image, SVG, blob, or canvas. An ImageBitmap object represents pixel data that can be drawn to a canvas wit...

XMLHttpRequest on Webplatform Feature Explorer The XMLHttpRequest API makes HTTP requests. It's the predecessor to fetch(). Also known as XHR.

Widely available: XMLHttpRequest

Description: The XMLHttpRequest API makes HTTP requests. It's the predecessor to fetch(). Also known as XHR.

contenteditable="plaintext-only" on Webplatform Feature Explorer The contenteditable="plaintext-only" global HTML attribute allows the user to edit the content of an element, but prevents rich-text formatting.

Newly available: contenteditable="plaintext-only"

Description: The contenteditable="plaintext-only" global HTML attribute allows the user to edit the content of an element, but prevents rich-text formatting.

WebCodecs on Webplatform Feature Explorer The WebCodecs API provides low-level access to individual video frames and chunks of audio samples, for full control over the way media is processed.

Limited: WebCodecs

Description: The WebCodecs API provides low-level access to individual video frames and chunks of audio samples, for full control over the way media is processed.

Import and export of mutable globals (WebAssembly) on Webplatform Feature Explorer Mutable global variables are importable and exportable.

Widely available: Import and export of mutable globals (WebAssembly)

Description: Mutable global variables are importable and exportable.

Multi-value (WebAssembly) on Webplatform Feature Explorer Instructions and blocks can produce multiple result values.

Widely available: Multi-value (WebAssembly)

Description: Instructions and blocks can produce multiple result values.

Exception references with exnref (WebAssembly) on Webplatform Feature Explorer When caught, an exception is reified into an exception reference, a value of the new type exnref.

Limited: Exception references with exnref (WebAssembly)

Description: When caught, an exception is reified into an exception reference, a value of the new type exnref.

Trusted types on Webplatform Feature Explorer Trusted types allow you to lock down insecure parts of the DOM API and prevent client-side cross-site scripting (XSS) attacks.

Limited: Trusted types

Description: Trusted types allow you to lock down insecure parts of the DOM API and prevent client-side cross-site scripting (XSS) attacks.

Set methods on Webplatform Feature Explorer The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.

Newly available: Set methods

Description: The difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union() methods of the JavaScript Set object performs operations between two sets.

RegExp.escape() on Webplatform Feature Explorer The RegExp.escape() static method takes a string and replaces any characters that are potentially special characters of a regular expression with equivalent escape sequences. For example, RegExp.esca...

Newly available: RegExp.escape()

Description: The RegExp.escape() static method takes a string and replaces any characters that are potentially special characters of a regular expression with equivalent escape sequences. For example, RegExp.esca...