chrome 146 · released
chrome 146 platform demos
29 features tracked for Chrome 146. Click a feature's title to open its demo; each card also links to its ChromeStatus entry.
Per-feature demos below are built automatically, one feature per commit, and every distinct use case should become an interactive concept page.
features (29)
Shipped (19)
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Cache sharing for extremely-pervasive resources
For a small number (hundreds) of hand-curated static third-party script, stylesheet and compression-dictionary resources that are used on a large portion of the web, Chrome will use a single-keyed HTTP cache to store tho...
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Data URL MIME Type Parameter Preservation
Preserve MIME type parameters (e.g., charset, boundary) in data URL Content-Type headers per the Fetch Standard. CL: https://chromium-review.googlesource.com/c/chromium/src/+/7135039
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Iterator Sequencing
A TC39 proposal to create iterators by sequencing existing iterators. Introduces Iterator.concat ( ...items ).
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LCP: Match specced behavior for emitting candidates
Changes the LCP algorithm to emit candidates based on the largest painted image instead of the largest pending-but-not-yet-painted image. This might cause more intermediate candidates to be emitted to the performance tim...
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Navigation API: add post-commit handler from precommit
Currently when intercepting navigations with the `navigate` event, precommitHandlers and post-commit ordinary handlers are passed separately. This works well when there is only one or the other, but can be a bit clunky ...
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Playback Statistics API for WebAudio
This feature adds an AudioContext.playbackStats attribute which returns an AudioPlaybackStats object. This object provides audio playback statistics such as average latency, minimum/maximum latency, underrun duration, an...
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Populate targetURL during file handling
Update the Launch Handler implementation to ensure LaunchParams.targetURL is populated when a PWA is launched via File Handling. Previously, this property was null when a file launch was directed to an existing window. T...
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Preserving dropEffect Values from dragover to drop Events
The HTML5 Drag and Drop API allows web applications to handle drag-and-drop operations through a series of events: `dragstart`, `dragenter`, `dragover`, `dragleave`, `drop`, and `dragend`. During these events, the [`data...
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Sanitizer API
The Sanitizer API offers an easy to use and safe by default HTML Sanitizer API, which developers can use to remove content that may execute script from arbitrary, user-supplied HTML content. The goal is to make it easier...
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Scoped Custom Element Registry
This feature allows for multiple custom element definitions for a single tag name to exist within a page to prevent custom element name conflicts when a web app uses libraries from multiple sources. This is achieved by a...
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Scroll Triggered Animations
This feature adds scroll-position-based control of animations, e.g. playing, pausing, and resetting an animation. A common pattern on pages across the web is to kick off an animation when a scroll position is reached. D...
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Selective Permissions Intervention
When a user grants a website permission to access a powerful API (specifically Bluetooth, Camera, Clipboard, DisplayCapture, Geolocation, Microphone, Serial, and USB), their consent is intended for the site, not necessa...
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Stop re-queueing LaunchParams on reload
Prevent the launchQueue from re-sending the last LaunchParams (including file handles) when a user reloads the page. Currently, a page refresh triggers the launch consumer again with the data from the original launch. Th...
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Support the `hanging` and `each-line` for the `text-indent` property
The two optional keywords for the `text-indent` property extends the capability and the usability of the property. The `hanging` keyword changes indentation to "hanging", that is, all lines except the first line will be...
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WebGPU Compatibility mode
Adds an opt-in, lightly restricted subset of the WebGPU API capable of running older graphics APIs such as OpenGL and Direct3D11. By opting into this mode and obeying its constraints, developers can extend the reach of t...
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WebGPU: Texture and Sampler Lets
Add a language feature to WGSL, `texture_and_sampler_let` that adds the ability to store texture and sampler objects into a let declaration in WGSL.
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WebGPU: Transient attachments
Functionality added to the WebGPU spec after its first shipment in a browser. A new TRANSIENT_ATTACHMENT GPUTextureUsage lets developers create attachments that allow render pass operations to stay in tile memory, avoid...
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meta name="text-scale"
Makes the root element's default font size scale in proportion to both the operating system's and browser's text scale setting. This allows pages that follow best practices around font-relative units (i.e. use rem and em...
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trigger-scope
trigger-scope gives authors the ability to limit the names of animation triggers declared by trigger-instantiating properties. Trigger-Instantiating properties, such as timeline-trigger, declare names which can be refer...
Stepped rollout (1)
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Local network access restrictions
Chrome 142 restricted the ability to make requests to the user's local network, gated behind a permission prompt. A local network request is any request from a public website to a local IP address or loopback, or from a ...
Origin Trial (3)
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CPU Performance API
Starting in Chrome 152, Chrome introduces the CPU Performance API, which allows web applications to determine the CPU performance of a user's device. This API targets web applications that will use this information to pr...
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Focusgroup
Gives authors the ability to declaratively give composite widgets arrow key navigation, a guaranteed tab stop, and last-focused memory, replacing hand-coded roving tabindex scripts. Example: <div focusgroup="toolbar wrap...
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Speculation rules: form_submission field
This extends speculation rules syntax to allow developers to specify the form_submission field for prerender. This field directs the browser to prepare the prerender as a form submission, so that it can be activated by ...
Dev Trial (6)
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Focusgroup
Gives authors the ability to declaratively give composite widgets arrow key navigation, a guaranteed tab stop, and last-focused memory, replacing hand-coded roving tabindex scripts. Example: <div focusgroup="toolbar wrap...
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Speculation rules: form_submission field
This extends speculation rules syntax to allow developers to specify the form_submission field for prerender. This field directs the browser to prepare the prerender as a form submission, so that it can be activated by ...
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Stop re-queueing LaunchParams on reload
Prevent the launchQueue from re-sending the last LaunchParams (including file handles) when a user reloads the page. Currently, a page refresh triggers the launch consumer again with the data from the original launch. Th...
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Unframed display mode for IWAs
Unframed display mode allows Isolated Web Apps [IWAs](https://chromeos.dev/en/web/isolated-web-apps) to occupy the entire browser window, which optimizes the workspace available. By removing standard window borders and t...
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WebMCP
WebMCP is a proposal for a web API that enables web pages to provide agent-specific paths in their UI. With WebMCP, agent-service interaction takes place via app-controlled UI, providing a shared context available to app...
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named-feature() function for CSS @supports
The named-feature() function allows CSS @supports rules to query for a small set of specific named features that are not possible to test for using other @supports mechanisms but which are considered highly valuable to t...