[developer-signals] weekly digest

WebDX CG developer-signals weekly digest

web-platform-dx/developer-signals

This is an automated email summarizing recent activity on the  
developer-signals repo, which is where web developers add their support for  
web features that are not yet implemented in all major browsers.


The filter() proposal saw a substantial surge in interest this period,  
garnering 32 new upvotes as developers from DataDog and Alibaba Group  
detailed how the function could simplify complex effects like grainy  
gradients and image blurs without the need for extra pseudo-elements.  
Ongoing discussion regarding light-dark() image values suggests a desire to  
extend the syntax to custom properties and length metrics to better  
facilitate theme-based optical adjustments, such as line thickness and  
contrast. High-profile momentum remains steady for established backlog  
priorities, with Anchor positioning , Customizable <select> , and JPEG XL  
continuing to attract new signals from engineers at Vercel and OpenAI.  
Additionally, steady growth for Lazy-loading media and Sanitizer API  
underscores a persistent community focus on standardizing performance and  
security primitives.


5 closed features (became Baseline Newly Available)


text-decoration-skip-ink: all (#532)
contrast-color() (#295)
JavaScript modules in shared workers (#113)
crisp-edges (#32)
Shared worker (#19)

7 newly created features


<usermedia> (#581)
Integrity violation reports (#580)
OpaqueRange (#579)
Permissions policy violation reporting (#578)
COEP violation reports (#577)
Crash reporting (#576)
Deprecation reports (#575)

53 active features


filter() (#509)

👍 +32
💬 +1
"I've been wanting this for years, I've even proposed it for  
[interop](https://github.com/web-platform-tests/interop/issues/717) - you  
can se..." (@thebabydino)

light-dark() image values (#568)

👍 +7
💬 +3
"## What I want to do with this feature - Use different  
images/photos/illustrations that are tuned for the corresponding mode. -  
Use an alte..." (@kizu)
"Could this be extended to other values? Like custom properties or length  
values/ font metrics? I have rarely needed to switch images based ..."  
(@thebabydino)
"@thebabydino that seems like a reasonable request, but it's not going to  
be seen by the right people here. Can you make an issue at https://..."  
(@jakearchibald)

border-shape (#555)

👍 +3

Lazy-loading media (#534)

👍 +3

Sanitizer API (#363)

👍 +3

interpolate-size (#253)

👍 +3

Anchor positioning (#245)

👍 +3

HTML in canvas (#569)

👍 +2

Fetch form data (#537)

👍 +2

random() (#514)

👍 +2

attr() (#293)

👍 +2

Customizable <select> (#278)

👍 +2

calc-size() (#252)

👍 +2

JPEG XL (#215)

👍 +2

overscroll-behavior (#567)

👍 +1

JavaScript promise integration (WebAssembly) (#521)

👍 +1

navigator.install() (#467)

👍 +1

progress() (#444)

👍 +1

Heading pseudo-classes (#384)

👍 +1

sibling-count() and sibling-index() (#361)

👍 +1

WebNN (#322)

👍 +1

prefers-reduced-data media query (#314)

👍 +1

:open (#310)

👍 +1

Magnetometer (#307)

👍 +1

<link rel="prefetch"> (#306)

👍 +1

@function (#300)

👍 +1

Temporal (#291)

👍 +1

autocorrect (#282)

👍 +1

<meta name="application-title"> (#280)

👍 +1

Error.isError() (#277)

👍 +1

popover="hint" (#274)

👍 +1

moveBefore() (#273)

👍 +1

Container scroll-state queries (#272)

👍 +1

Memory64 (WebAssembly) (#269)

👍 +1

background-clip: border-area (#266)

👍 +1

<img sizes="auto" loading="lazy"> (#250)

👍 +1

CloseWatcher (#249)

👍 +1

Cross-document view transitions (#248)

👍 +1

SVG clipboard items (#239)

👍 +1

CSS import attributes (#233)

👍 +1

Global privacy control (#222)

👍 +1

Container style queries (#196)

👍 +1

Asynchronously iterable streams (#191)

👍 +1

initial-letter (#189)

👍 +1

Speculation rules (#186)

👍 +1

object-view-box (#177)

👍 +1

<meta name="theme-color"> (#145)

👍 +1

Cookie store (#135)

👍 +1

navigator.share() (#76)

👍 +1

overflow-anchor (#63)

👍 +1

Payment request (#58)

👍 +1

<datalist> (#51)

👍 +1

Notifications (#23)

👍 +1


Activity since 2026-05-07