(I'm not Mathias, but...)

You can just respond to this thread with the debug info, and update the Chromestatus entry as well - thanks!

On 1/20/22 3:57 PM, 'Ethan Jimenez' via blink-dev wrote:

Hi everyone!

Philip, thanks for the encouragement, I’m super excited to deliver subgrid knowing that it’s going to make so many devs happy.

@Mathias Bynens <mailto:math...@chromium.org> quick question, should I re-send the intent to prototype or just edit it here?

Thanks in advance,

Ethan

*From:* Philip Jägenstedt <foo...@chromium.org>
*Sent:* Wednesday, January 19, 2022 9:03 AM
*To:* Mathias Bynens <math...@chromium.org>
*Cc:* Ethan Jimenez <etha...@microsoft.com>; blink-dev@chromium.org
*Subject:* [EXTERNAL] Re: [blink-dev] Intent to Prototype: CSS Subgrid

Hi Ethan,

It's great to see this Intent to Prototype. Subgrid tends to come up as important in web developer surveys, the latest being State of CSS 2021:

https://2021.stateofcss.com/en-US/opinions/#browser_interoperability_features <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2F2021.stateofcss.com%2Fen-US%2Fopinions%2F%23browser_interoperability_features&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742483677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3UnAOm9ghulsQsCuKHe0o8wieFFdiWaOSpl3yBzAhhU%3D&reserved=0>

https://2021.stateofcss.com/en-US/opinions/#currently_missing_from_css_wins <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2F2021.stateofcss.com%2Fen-US%2Fopinions%2F%23currently_missing_from_css_wins&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742483677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=2BuzOdEvD%2BUeB%2FfNgb3agOhd0HsUbGouVJRihKlKsHk%3D&reserved=0>

It's a part of Interop 2022 <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fweb-platform-tests%2Finterop-2022%2Fissues%2F1&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742483677%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=mnBsxC7cs%2BHBQV4f%2BaK8%2BESEEK5XXdXvIcy%2BYlPwRRs%3D&reserved=0> for this reason

So I hope this all goes well :D

Best regards,

Philip

On Wed, Jan 19, 2022 at 8:09 AM Mathias Bynens <math...@chromium.org> wrote:

    The required “Debuggability” section was left empty. Please follow
    https://goo.gle/devtools-checklist
    
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgoo.gle%2Fdevtools-checklist&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=qKl6stbtdfjQS2vvA77lunv443BgUaevmQmIrFpxU%2Fs%3D&reserved=0>
    and elaborate on how developers would inspect & debug this new
    feature. Per the guide, we need to ensure DevTools supports basic
    editing of the new CSS properties and values — which would likely
    work out-of-the-box anyhow. Please elaborate.

    On Tue, Jan 18, 2022 at 6:42 PM 'Ethan Jimenez' via blink-dev
    <blink-dev@chromium.org> wrote:

        *Contact emails*

        etha...@microsoft.com <mailto:etha...@microsoft.com>

        *Explainer*

        None

        *Specification*

        https://drafts.csswg.org/css-grid-2
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdrafts.csswg.org%2Fcss-grid-2&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=OMrMagG%2FkAcv8nVpSvlEhB%2Bn0lSHNmmT0b57y9yWP8E%3D&reserved=0>

        *Design docs*
        
https://docs.google.com/document/d/1cpsCmzdDlXUKtMxOUKIoJFyLH54mLVhZnam_z0PriO0/edit?usp=sharing
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.google.com%2Fdocument%2Fd%2F1cpsCmzdDlXUKtMxOUKIoJFyLH54mLVhZnam_z0PriO0%2Fedit%3Fusp%3Dsharing&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Rh21bJEt8PUvZlotanEy8iO5EFNwasu40CynTSe6k4k%3D&reserved=0>

        *Summary*

        Implements the CSS Grid Layout Module Level 2 specification,
        which introduces the concept of a "subgrid" to nested grid
        containers.

        *Blink component*

        Blink>CSS
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.chromium.org%2Fp%2Fchromium%2Fissues%2Flist%3Fq%3Dcomponent%3ABlink%253ECSS&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Z4KMPmXHJi3M8KiJxNUIZ2lpgW%2BkFLbvbfgt6oW0U9U%3D&reserved=0>

        *Motivation*

        The problem CSS Subgrid solves is inheritance within nested
        grid containers: only direct children of a grid container are
        aware of its parent's grid properties, e.g., the size of its
        tracks, the names of each grid line. Whenever web authors work
        with a grid spanning some area within another grid, the
        children of the innermost grid are unaware of the outermost
        grid structure, which could potentially be a disadvantage if
        authors want those items to be aligned to other descendants of
        the outermost grid. A "subgrid" is a nested grid container
        whose row and column definitions are deferred to its parent;
        with such concept in mind, the problem above is mitigated by
        inheriting the grid properties and alignment from the spanned
        grid area in its parent grid.

        *Initial public proposal*

        *Search tags*

        subgrid
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Asubgrid&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=e3YxP8NZVIXrZ9qUsVuxV7S5novjV2%2BBoxBNsAowQww%3D&reserved=0>,
        css-grid-2
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Acss-grid-2&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=o%2B7cR06l3HB2lg3DIURoUVrPumRoVvnz7Rs49TMINUs%3D&reserved=0>,
        css
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Acss&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=YraHj12eCX45xWlbeLUDVHXeu9TWVQGU%2B5%2BwY%2BvRSQM%3D&reserved=0>

        *TAG review*

        *TAG review status*

        Not applicable

        *Risks*

        *Interoperability and Compatibility*

        This is a well-defined specification from the W3C, so we would
        be addressing some interoperability gaps instead of causing them.

        /Gecko/: Shipped/Shipping

        /WebKit/: Positive

        /Web developers/: Strongly positive

        /Other signals/:

        *Debuggability*

        *Is this feature fully tested by **web-platform-tests*
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromium.googlesource.com%2Fchromium%2Fsrc%2F%2B%2Fmaster%2Fdocs%2Ftesting%2Fweb_platform_tests.md&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=xtWVa%2FAK37hGMzG55%2B6N5MiKqhABVHaRn4JNZZDhtB4%3D&reserved=0>*?*

        Yes

        *Flag name*

        *Requires code in //chrome?*

        False

        *Tracking bug*

        https://crbug.com/618969
        
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        *Estimated milestones*

        No milestones specified

        *Link to entry on the Chrome Platform Status*

        https://chromestatus.com/feature/5663795354533888
        
<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeature%2F5663795354533888&data=04%7C01%7Cethavar%40microsoft.com%7Cbdddf08c1dcf40165a1508d9db6d855f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637782085742533666%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=ceQqkvo%2FWpdJHpbbLtPDQUBMA%2B9YbsRTcOosNgLB7Mg%3D&reserved=0>

        This intent message was generated by Chrome Platform Status
        
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