Remaining work

servo

Work items are grouped by area. Items where we have some historical data from teams on other browser have estimates in some basic size buckets. Small is < 3 person months; Medium is < 6; Large is < 12; XLarge is < 24.

Graphics

2d canvas text APIs - small
Remaining 3d WebGL APIs - medium
SVG - XLarge

Layout

flexbox - XLarge
WebAnimation - Medium
finish tables - Small
form controls - Large
<frame>- Small
bidi - Large
writing-mode - Medium
grid - XLarge
shapes - Large
multicol - Small
fragmentation - Large
shadow DOM - Large
quirks mode - Small

Media

video - Large
animated images - Small
<audio> - small
webrtc - XLarge
mse - XLarge
eme - XLarge
webvtt - Small
Responsive images - small

DOM

ContentEditable - Large
SharedWorker - Small
ServiceWorker - Large
MessageChannel/MessagePort - Small
transferable objects - Small
IndexedDB - Large
CSP - Medium
Document unload - Small
cross-origin wrappers - Small
WebAudio - Medium
TouchEvent/PointerEvents - Large
Shadow DOM - Large
speculative HTML parsing - Small
off-main-thread HTML parsing - Small
accessibility - Large
Keyboard / focus navigation - Small
WebVTT - Small
WebAnimation - Small
HTMLMediaElement - Medium
iframe sandbox - Small
iframe srcdoc - Small
Selection - Small
<script type=module> - Medium

Tooling

devtools - Large
automated crash reports - Small

Testing

dynamic benchmark suite - Small
WebReplay-based Alexa top-sites automated suite - Small
feature / performance progress tracking and reporting - Small
simulator testing of android - Small

Release / Servicing

publish and sign builds - Small
updating on-device - Small
security update infrastructure - Small
installers

Unsupported / not planning to implement

MathML
will-change