I regret that I have but one LGTM to give.

LGTM1.

On Wednesday, September 30, 2026 at 2:10:25 PM UTC+1 Chromestatus wrote:

> *Contact emails*
> [email protected], [email protected], [email protected], 
> [email protected], [email protected]
>
> *Explainer*
> https://github.com/WICG/html-in-canvas
>
> *Specification*
> https://github.com/whatwg/html/pull/11588 
>
> *Summary*
> HTML-in-canvas enables customizing the rendering of html using canvas with 
> new primitives to manage canvas layout, drawing capabilities, rendering 
> events for DOM-to-canvas synchronization, and geometry update capabilities 
> for canvas-to-DOM synchronization. 
>
> *Blink component*
> Blink>Canvas 
> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECanvas%22>
>
> *Web Feature ID*
> canvas <https://webstatus.dev/features/canvas> 
>
> *Motivation*
> High-performance web applications rely on <canvas> for control over 
> rendering that goes beyond standard HTML/CSS. However, by using <canvas>, 
> they lose all the rich, built-in features of the web platform, including: * 
> Advanced formatting, such as styled multi-line text. * Interactivity, such 
> as copy&paste, forms, and text selection. * Accessibility. This forces a 
> bad trade-off: developers must either re-implement these fundamental 
> browser features in JS, or simply not provide them, resulting in a sub-par, 
> inaccessible user experience. 
>
> *Initial public proposal*
> https://logs.csswg.org/irc.w3.org/css/2024-06-12/#e1628190
>
> *TAG review*
> https://github.com/w3ctag/design-reviews/issues/1204 
>
> *TAG review status*
> Pending
>
> *Origin Trial Name*
> html-in-canvas
>
> *Goals for experimentation*
> API shape
>
> *Chromium Trial Name*
> HTMLInCanvas
>
> *Origin Trial documentation link*
> https://github.com/WICG/html-in-canvas
>
> *WebFeature UseCounter name*
> kHTMLInCanvas
>
> *Goals for experimentation*
> None 
>
> *Risks*
>
>
> *Interoperability and Compatibility*
> This API exposes a small amount of new information which carries an 
> interop risk, such as the pixels of gradients and form controls. 
>
> *Gecko*: No signal (
> https://github.com/mozilla/standards-positions/issues/1076)
>
> *WebKit*: Positive (
> https://github.com/WebKit/standards-positions/issues/630) WebKit has 
> begun early implementation work in 
> https://github.com/WebKit/WebKit/pull/70542.
>
> *Web developers*: Positive (
> https://github.com/whatwg/html/issues/10650#issuecomment-3324124682) We 
> have positive signals from users of the Dev Trial and Origin Trials: 
> https://github.com/whatwg/html/issues/10650#issuecomment-3324124682
>
> *Other signals*:
>
> *Security*
> The feature reveals no new security information by only painting content 
> that is safe to read back. This is described in a new "read-back allowed 
> rendering" section of the explainer and accompanying spec: 
> https://github.com/WICG/html-in-canvas#read-back-allowed-rendering.
>
> *WebView application risks*
>
> Does this intent deprecate or change behavior of existing APIs, such that 
> it has potentially high risk for Android WebView-based applications? 
> *No information provided* 
>
>
> *Debuggability*
> Content under canvas can be debugged like regular DOM content via 
> devtools. 
>
> *Will this feature be supported on all six Blink platforms (Windows, Mac, 
> Linux, ChromeOS, Android, and Android WebView)?*
> Yes 
> There are no platform restrictions. This is a new canvas/html feature and 
> works on all platforms where those are supported, which is every platform. 
>
> *Is this feature fully tested by web-platform-tests 
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
> Yes 
>
> https://wpt.fyi/results/html/canvas/element/manual/draw-element-image?label=experimental&label=master&aligned
>
> *DevTrial instructions*
>
> https://github.com/WICG/html-in-canvas?tab=readme-ov-file#developer-trial-dev-trial-information
>
> *Flag name on about://flags*
> chrome://flags/#canvas-draw-element 
>
> *Finch feature name*
> CanvasDrawElement 
>
> *Rollout plan*
> Will ship enabled for all users
>
> *Requires code in //chrome?*
> False
>
> *Tracking bug*
> https://crbug.com/500967896
>
> *Measurement*
> CanvasHtml WebFeature counter: 
> https://chromestatus.com/metrics/webfeature/timeline/popularity/445
>
> *Availability expectation*
> It is difficult to put an exact timeline on support in other browsers 
> given the complexity of the feature, but the feature is expected to be 
> implemented in all engines and not be a chromium-specific feature.
>
> *Adoption expectation*
> As this is a new platform primitive, the feature would immediately be 
> considered best-practice once it reaches Web Platform baseline, and there 
> is strong developer interest to use this immediately (
> https://github.com/whatwg/html/issues/10650#issuecomment-3324124682).
>
> *Adoption plan*
> The plan is to continue to actively engage with other implementors to 
> support this feature in all browsers. We have documentation lined up to 
> support this feature.
>
> *Estimated milestones*
> Shipping on desktop 157 
> Origin trial desktop first 148 
> Origin trial desktop last 150 
> Origin trial extension 1 end milestone 154 
> Origin trial extension 2 end milestone 160 
> DevTrial on desktop 138 
> Shipping on Android 157 
> Origin trial Android first 148 
> Origin trial Android last 150 
> DevTrial on Android 138 
> Shipping on WebView 157 
> Origin trial WebView first 148 
> Origin trial WebView last 150 
>
> *Anticipated spec changes*
>
> Open questions about a feature may be a source of future web compat or 
> interop issues. Please list open issues (e.g. links to known github issues 
> in the project for the feature specification) whose resolution may 
> introduce web compat/interop risk (e.g., changing to naming or structure of 
> the API in a non-backward-compatible way). 
> All open comments have a proposed resolution and we don't expect 
> substantive changes.
>
> *Link to entry on the Chrome Platform Status*
> https://chromestatus.com/feature/5172548013916160?gate=5186330228424704
>
> *Links to previous Intent discussions*
> Intent to Prototype: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/a473b17f-def6-4bb7-85ee-344947c5ecabn%40chromium.org
> Intent to Experiment: 
> https://groups.google.com/a/chromium.org/g/blink-dev/c/t_nGEmJ_v4s
> Intent to Extend Experiment 1: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a2997ea.8b46cef5.209277.04ee.GAE%40google.com
> Intent to Extend Experiment 2: 
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a9f2b61.81999fdc.3b7fb5.016d.GAE%40google.com
>
>
> This intent message was generated by Chrome Platform Status 
> <https://chromestatus.com>. 
>

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