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Apple Safari Google Chrome Microsoft Edge Mozilla Firefox Opera Samsung Internet Spec
Layout API
(Canary)

Spec
Paint API
(Chrome 65)

(Servo)

(Opera 52)

Spec
Parser API
Properties & Values API
(Safari TP 67)

(Canary)

Spec
AnimationWorklet
(Canary)

Spec
Typed OM
(Chrome 66)

(Opera 53)

Spec
Font Metrics API

Layout API in Apple Safari

Layout API in Google Chrome

Notes
“Experimental Web Platform features” on chrome://flags.

Layout API in Microsoft Edge

Layout API in Mozilla Firefox

Notes
Development status in Mozilla’s Bugzilla.

Layout API in Opera

Layout API in Samsung Internet

Paint API in Apple Safari

Notes
Development status in WebKit’s status page.

Paint API in Google Chrome

Version
Chrome 65. Release date: March 6, 2018
Notes
  • Feature on Chromestatus
  • Debugging (i.e. breakpoints) do not work.
  • No support for `paint()` arguments, due to the lack of support for Properties and Values API.

Paint API in Microsoft Edge

Paint API in Mozilla Firefox

Notes
Development status in Mozilla’s Bugzilla. Custom Paint is being experimented with in Servo.

Paint API in Opera

Version
Opera 52. Release date: March 22, 2018
Notes
  • Debugging (i.e. breakpoints) do not work.
  • No support for `paint()` arguments, due to the lack of support for Properties and Values API.

Paint API in Samsung Internet

Parser API in Apple Safari

Parser API in Google Chrome

Parser API in Microsoft Edge

Parser API in Mozilla Firefox

Parser API in Opera

Parser API in Samsung Internet

Properties & Values API in Apple Safari

Flags
“Experimental features” in Develop menu
Notes
Development status in WebKit’s status page.
Still under development.

Properties & Values API in Google Chrome

Flags
“Experimental Web Platform features” on chrome://flags.
Notes
Still under development.

Properties & Values API in Microsoft Edge

Properties & Values API in Mozilla Firefox

Notes
Development status in Mozilla’s Bugzilla.

Properties & Values API in Opera

Properties & Values API in Samsung Internet

AnimationWorklet in Apple Safari

AnimationWorklet in Google Chrome

Notes
Feature on Chromestatus.

AnimationWorklet in Microsoft Edge

AnimationWorklet in Mozilla Firefox

AnimationWorklet in Opera

AnimationWorklet in Samsung Internet

Typed OM in Apple Safari

Notes
Apple officially commited to Typed OM in a Houdini Task Force meeting in August 2017.

Typed OM in Google Chrome

Version
Chrome 65. Release date: April 17, 2018
Notes

Typed OM in Microsoft Edge

Typed OM in Mozilla Firefox

Notes
Development status in Mozilla’s Bugzilla.

Typed OM in Opera

Version
Opera 53. Release date: May 10, 2018
Notes
  • Only a subset of all CSS properties is supported

Typed OM in Samsung Internet

Font Metrics API in Apple Safari

Font Metrics API in Google Chrome

Font Metrics API in Microsoft Edge

Font Metrics API in Mozilla Firefox

Font Metrics API in Opera

Font Metrics API in Samsung Internet