[INFORMATION REQUESTED] Chrome 91 is Coming; What are You Working On?

[Joe Medley]

Gang,

Chrome 91 beta is planned for release on April 22. Developer Relations needs information to help us plan. We want a complete list of everything in Chrome beta for the beta post. We try when possible to have articles for important new features on web.dev.

Please let me know of anything that might be shipping in Chrome 91 or 92. I don't care if it's a new API, a bug to add a missing interface member, a spec change or whatever. I need to know all of it. If you have any questions about this, just ask, or refer to the FAQ in my communication instructions.

The list of what I currently believe to be shipping is in this spreadsheet. For those who can't reach it, here's a summary.

@font-face descriptor advance-override
Align performance API timer resolution to cross-origin isolated capability
battery-savings meta tag	Leaving origin trial
Beforematch event	Leaving origin trial
Clipboard: read-only files support
CSS custom counter styles
CSS Selector Pseudo class :dir()
Declarative Shadow DOM	Leaving origin trial
Digital Goods API	Starting origin trial
Ergonomic brand checks for private fields
GravitySensor API
Idle Detection	Leaving origin trial
PlzDedicatedWorker: browser-initiated dedicated worker script loading
QuicTransport	Leaving origin trial
Secure payment confirmation	Starting origin trial
Single <compound-selectorLeaving origin trial for :host(), :host-context()
Viewport-height client hint
WebAssembly SIMD	Leaving origin trial
WebOTP API: cross-origin iframe support
WebRTC: TURN server port limiting
WebSockets over HTTP/2

Thank you,

Joe

Joe Medley | Technical Writer, Chrome DevRel | jme...@google.com | 816-678-7195

If an API's not documented it doesn't exist.

[Una Kravets]

TablesNG is also shipping in Chromium 91, which resolves 72 compat bugs: https://docs.google.com/document/d/16PFD1GtMI9Zgwu0jtPaKZJ75Q2wyZ9EZnVbBacOfiNA/edit?ts=602421b2# <-- developer notes

We're starting to put together a post, but for now you can link to all the bugs that will be fixed: https://bugs.chromium.org/p/chromium/issues/list?q=label%3ATarget-TablesNG&can=2

- Una

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[PhistucK]

Wow, a great milestone!

How many more LayoutNG parts are left?

(In other words, how long before the last old-layout-engine feature is gone? :))

☆PhistucK

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[Darwin Huang]

File Handling should also ship in M91, per the chromestatus.

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[Manuel Rego Casasnovas]

On 29/03/2021 20:14, 'Joe Medley' via blink-dev wrote:
> CSS Selector Pseudo class :dir()

> <https://www.chromestatus.com/feature/5751531651465216>

:dir() has been moved back to experimental, until a spec issue gets
resolved [1], so it won't be shipping in M91. I've just updated the
chromestatus entry to reflect that.

Cheers,
Rego

[1] https://chromium-review.googlesource.com/c/chromium/src/+/2768458

[Ian Kilpatrick]

Hi PhistucK,

> How many more LayoutNG parts are left?

Grid layout is currently being converted at the moment, (driven by Microsoft engineers), and likely will be completed in the M92/93 timeframe (likely feature complete in the next few weeks). A major benefit here will be improved performance for sites which complicated nesting of flex/grids due to improved caching, in addition to raising the number of allowable tracks within a grid.

After that the "final"[1] major piece is fragmentation (multi-col layout, and printing). We (both Google and Microsoft engineers) are currently working on this. It's a complicated space so will likely take a few quarters, however after both fragmentation pieces have shipped we can start deleting large parts of the old layout codebase, and simplifying a lot of code, and redundant steps.

A major benefit of the new fragmentation engine is that a lot more layouts (flex/grid/etc) will properly fragment, which accounts for a large portion of Blink>Layout non-feature (i.e. bugs) "star-count" at the moment.

Happy to answer more questions if you have them.[2]

Ian

[1] "final" is used in broad sweeping terms here. :) There are other projects such as moving SVG text to the NG text pipeline which should dramatically improve complex text rendering within SVG, and getting replaced elements to calculating their size in an "NG" way - improving correctness. However after the grid and fragmentation projects are complete that's when we can start removing/simplifying a lot of code.

[2] I'll also likely do a talk about this at the next BlinkOn in a few weeks.

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[Mason Freed]

Hi Joe,

Declarative Shadow DOM will ship in M90.

Thanks,

Mason

[David Van Cleve]

Hi Joe,

The Trust Token API origin trial will expand to include Android WebView in M91, as an initial load test for the newly-landed WebView Origin Trials framework support.

Thanks as always,

David

[Eiji Kitamura]

Hi Joe,

Web OTP iframe support is waiting for 3 LGTMs from API owners before shipping in 91.

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Eiji Kitamura / えーじ | Developer Advocate | @agektmr | Office Location: Tokyo Shibuya

[Asami Doi]

Hello Joe,

For "PlzDedicatedWorker: browser-initiated dedicated worker script loading", the target milestone is M92 not M91.
I'm preparing the Intent-to-ship email and will update the description at chromestatus.

Thanks,

Asami

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[PhistucK]

Thank you for the detailed answer!

So exciting.

Are absolutely positioned elements already handled by LayoutNG, or is that another upcoming part?

Same for the so called (I think) atomic inlines (I think I read somewhere that they are not part of the first released part of LayoutNG, which handled block and inline layout)?

☆PhistucK

[Christian Biesinger]

Abspos is already handled by LayoutNG, yes.

For atomic inlines, it depends on what kind of box they are. inline-block is supported; inline-table is supported with the tablesng launch; replaced elements, it depends on the element.

Christian

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[Joe Medley]

It's noted. Thanks.

Joe Medley | Technical Writer, Chrome DevRel | jme...@google.com | 816-678-7195

If an API's not documented it doesn't exist.

[PhistucK]

Thank you. :)

Woo hoo! Congratulations on another great milestone. :)

☆PhistucK