This is being tracked on
https://bugs.chromium.org/p/chromium/issues/detail?id=1257010

On Mon, 18 Oct 2021 at 16:28, Glen Robertson <glen...@chromium.org> wrote:

> We now intend to disable cross-origin usage of the DGAPI along with the
> v2.0 OT (I'm working on a CL, still needs to be landed and merged to M96).
>
> On Fri, 15 Oct 2021 at 17:56, Yoav Weiss <yoavwe...@chromium.org> wrote:
>
>> That'd be significantly better from my perspective, thanks! :)
>>
>> On Fri, Oct 15, 2021 at 8:48 AM Glen Robertson <glen...@chromium.org>
>> wrote:
>>
>>> Actually, we could disable cross-origin usage and measure attempted
>>> usage at the same time (in M96 with merge, in time for v2.0 OT start).
>>> Sounds like this would be preferred by Blink Owners? I'll check with
>>> others on the team.
>>>
>>> On Fri, 15 Oct 2021 at 10:02, Glen Robertson <glen...@chromium.org>
>>> wrote:
>>>
>>>> Probably not before the OT starts, but yes before the OT finishes. I am
>>>> adding a metric to see if there's any attempted usage of the API in this
>>>> way currently, so we will need to get that out, then wait a milestone to
>>>> see the result. That approach was OK'd by privacy review.
>>>> Also note that this isn't a change from the v1 API.
>>>>
>>>> On Thu, 14 Oct 2021 at 19:40, Yoav Weiss <yoavwe...@chromium.org>
>>>> wrote:
>>>>
>>>>> Is it possible to disallow delegation for the OT as well?
>>>>>
>>>>> On Tue, Oct 12, 2021 at 6:46 AM Glen Robertson <glen...@chromium.org>
>>>>> wrote:
>>>>>
>>>>>> Yes, we are planning to disallow delegation before shipping. This was
>>>>>> discussed in the privacy review on the launch bug
>>>>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1250123>.
>>>>>>
>>>>>> On Tue, 12 Oct 2021 at 14:13, 'Matt Menke' via blink-dev <
>>>>>> blink-dev@chromium.org> wrote:
>>>>>>
>>>>>>> All intent emails - including experiment, are reviewed for potential
>>>>>>> privacy and security issues.  If this is keyed on frame origin, 
>>>>>>> delegating
>>>>>>> to cross-origin iframes is a cross-site tracking vector.  If 
>>>>>>> cross-origin
>>>>>>> iframes have access to it, but keyed on top frame origin rather than 
>>>>>>> iframe
>>>>>>> origin, it's not a privacy issue (though haven't thought about security
>>>>>>> considerations).  Disallowing delegation, or otherwise addressing the
>>>>>>> cross-site tracking issue would be needed to launch, so it's good to be
>>>>>>> aware of it now, rather than only learning that this is an issue when
>>>>>>> trying to ship.
>>>>>>>
>>>>>>> On Mon, Oct 11, 2021 at 11:03 PM Glen Robertson <
>>>>>>> glen...@chromium.org> wrote:
>>>>>>>
>>>>>>>> In Chrome, the feature is controlled by the "payment" feature
>>>>>>>> policy, and is therefore unavailable except in top-level context or 
>>>>>>>> when
>>>>>>>> explicitly delegated to subframes (we are planning to disallow
>>>>>>>> delegation
>>>>>>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1257010> too).
>>>>>>>> Digital products managed by the API are specific to an origin.
>>>>>>>> IIUC we don't usually specify how user agents should do security
>>>>>>>> controls but I've added these as suggestions in the explainer
>>>>>>>> <https://github.com/WICG/digital-goods/blob/main/explainer.md#security-and-privacy-considerations>
>>>>>>>> .
>>>>>>>>
>>>>>>>> On Sat, 9 Oct 2021 at 02:40, Matt Menke <mme...@google.com> wrote:
>>>>>>>>
>>>>>>>>> Skimming over the explainer, I can't determine whether this leaks
>>>>>>>>> data cross-site or not.  Are these digital products that the API 
>>>>>>>>> manages
>>>>>>>>> exposed across sites, restricted to same-origin frame, restricted to
>>>>>>>>> same-origin 1P contexts, or what?
>>>>>>>>>
>>>>>>>>> On Friday, October 8, 2021 at 3:37:18 AM UTC-4 Glen Robertson
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Contact emails
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *mgi...@chromium.org, gle...@chromium.org, rou...@chromium.org*
>>>>>>>>>> Explainer
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://github.com/WICG/digital-goods/blob/master/explainer.md
>>>>>>>>>> <https://github.com/WICG/digital-goods/blob/master/explainer.md>*
>>>>>>>>>> Specification
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *None yet. Have a spec mentor and aiming to do this by M96
>>>>>>>>>> stable.*Design docs
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://github.com/WICG/digital-goods/blob/master/explainer.md
>>>>>>>>>> <https://github.com/WICG/digital-goods/blob/master/explainer.md>https://docs.google.com/document/d/1Jbt2Mzt-xg1cWVlFScBQsoX_pE8Kg1gYpulxUSV8FM0/edit
>>>>>>>>>> <https://docs.google.com/document/d/1Jbt2Mzt-xg1cWVlFScBQsoX_pE8Kg1gYpulxUSV8FM0/edit>go/dgapi2
>>>>>>>>>> <https://goto.google.com/dgapi2> (internal)*Summary
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *An API for querying and managing digital products to facilitate
>>>>>>>>>> in-app purchases from web applications, in conjunction with the 
>>>>>>>>>> Payment
>>>>>>>>>> Request API (which is used to make the actual purchases). The API 
>>>>>>>>>> would be
>>>>>>>>>> linked to a digital distribution service connected to via the user 
>>>>>>>>>> agent.
>>>>>>>>>> In Chrome, this is specifically a web API wrapper around the Android 
>>>>>>>>>> Play
>>>>>>>>>> Billing API.*Blink component
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *Blink>Payments
>>>>>>>>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPayments>*Search
>>>>>>>>>> tags
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *payments <https://chromestatus.com/features#tags:payments>,
>>>>>>>>>> billing <https://chromestatus.com/features#tags:billing>*TAG
>>>>>>>>>> review
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://github.com/w3ctag/design-reviews/issues/571
>>>>>>>>>> <https://github.com/w3ctag/design-reviews/issues/571>TAG recommends 
>>>>>>>>>> making
>>>>>>>>>> a Chrome-specific API. Other issues addressed.*TAG review status
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *Issues addressed*Risks
>>>>>>>>>>
>>>>>>>>>> Interoperability and Compatibility
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *Similar to Payment Request: this API is used to talk to specific
>>>>>>>>>> store backends, and so its usage is tailored to the specific store. 
>>>>>>>>>> The
>>>>>>>>>> reason it's a proposed web standard is so that the same code (which 
>>>>>>>>>> is
>>>>>>>>>> specific to one store) is portable across browsers.Gecko: No signal
>>>>>>>>>> (https://github.com/mozilla/standards-positions/issues/349
>>>>>>>>>> <https://github.com/mozilla/standards-positions/issues/349>)WebKit: 
>>>>>>>>>> No
>>>>>>>>>> signal
>>>>>>>>>> (https://lists.webkit.org/pipermail/webkit-dev/2021-October/032001.html
>>>>>>>>>> <https://lists.webkit.org/pipermail/webkit-dev/2021-October/032001.html>)
>>>>>>>>>>  Microsoft:
>>>>>>>>>> Initial discussions, no public signal yet (has been 
>>>>>>>>>> requested).Samsung:
>>>>>>>>>> Initial discussions, no public signal yet (has been requested).Web
>>>>>>>>>> developers: Positive
>>>>>>>>>> (https://discourse.wicg.io/t/proposal-web-payments-digital-product-management-api/4350
>>>>>>>>>> <https://discourse.wicg.io/t/proposal-web-payments-digital-product-management-api/4350>)44/61
>>>>>>>>>> responses of "extremely likely" to continue to use the feature from 
>>>>>>>>>> v1.0
>>>>>>>>>> OT36/61 responses of slightly-to-extremely easy to use the feature 
>>>>>>>>>> (and 12
>>>>>>>>>> neutral) from v1.0 OT*Ergonomics
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *Used in tandem with the Payment Request API.*Goals for
>>>>>>>>>> experimentation
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *- General API design. Determine whether developers need to
>>>>>>>>>> access more data that would be exposed through the Play Billing API 
>>>>>>>>>> but is
>>>>>>>>>> not exposed through our web API.- Specifically, we have significantly
>>>>>>>>>> reduced the API surface for v2.0, and would like to know if it is 
>>>>>>>>>> still
>>>>>>>>>> acceptable for developers.- We would also like to know whether the 
>>>>>>>>>> API is
>>>>>>>>>> suitable for abstracting over other non-Play stores. While running an
>>>>>>>>>> experiment with the current implementation won't tell us this, it 
>>>>>>>>>> will set
>>>>>>>>>> up real-world clients and we can then try their sites on other
>>>>>>>>>> implementations.*Reason this experiment is being extended
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *An origin trial ran from M88 to M95 and found some areas of
>>>>>>>>>> developer friction and new features needed (see bugs labeled
>>>>>>>>>> https://bugs.chromium.org/p/chromium/issues/list?q=label%3ADGAPI
>>>>>>>>>> <https://bugs.chromium.org/p/chromium/issues/list?q=label%3ADGAPI>). 
>>>>>>>>>> We
>>>>>>>>>> also found potential fraud issues in the v1.0 API.The v2.0 API fixes
>>>>>>>>>> several of the developer issues raised, and fixes the known fraud 
>>>>>>>>>> issues.
>>>>>>>>>> However, this is a significant change to the API surface. We would 
>>>>>>>>>> like to
>>>>>>>>>> know if the updated API is still acceptable for developers.*Ongoing
>>>>>>>>>> technical constraints
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *None*Debuggability
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *We have had several requests from developers to make the API
>>>>>>>>>> easier to debug, but it is difficult due to the interaction with a 
>>>>>>>>>> backing
>>>>>>>>>> service based in an app/store context. We are looking for suggestions
>>>>>>>>>> <https://github.com/WICG/digital-goods/issues/33> on how we might 
>>>>>>>>>> improve
>>>>>>>>>> the debuggability of the API.*Will this feature be supported on
>>>>>>>>>> all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and
>>>>>>>>>> Android WebView)?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *NoNo, Android and Chrome OS only (the two platforms where we
>>>>>>>>>> have Play Store integration).*Is this feature fully tested by
>>>>>>>>>> web-platform-tests
>>>>>>>>>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
>>>>>>>>>> ?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *No. The JS<->mojo interface (Blink code) is tested
>>>>>>>>>> <https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/wpt_internal/digital-goods/>
>>>>>>>>>> but the backing app/store context is unavailable in WPT.*Flag
>>>>>>>>>> name
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *DigitalGoods*Requires code in //chrome?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *False*Tracking bug
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://crbug.com/1248319 <https://crbug.com/1248319>*Launch bug
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://crbug.com/1250123 <https://crbug.com/1250123>*Estimated
>>>>>>>>>> milestones
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *OriginTrial desktop last99OriginTrial desktop first96OriginTrial
>>>>>>>>>> android last99OriginTrial android first96*Link to entry on the
>>>>>>>>>> Chrome Platform Status
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> *https://chromestatus.com/feature/5339955595313152
>>>>>>>>>> <https://chromestatus.com/feature/5339955595313152>*Links to
>>>>>>>>>> previous Intent discussions
>>>>>>>>>>
>>>>>>>>>> Intent to prototype:
>>>>>>>>>> https://groups.google.com/a/chromium.org/g/blink-dev/c/vkS3k30lWNs
>>>>>>>>>>
>>>>>>>>>> Intent to Experiment (DGAPI v1.0):
>>>>>>>>>> https://groups.google.com/a/chromium.org/g/blink-dev/c/syI9_M9dANY/m/3lt-QGMHAgAJ
>>>>>>>>>>
>>>>>>>>>> Intent to Continue Experimenting (DGAPI v1.0):
>>>>>>>>>>
>>>>>>>>>> https://groups.google.com/a/chromium.org/g/blink-dev/c/uoTx_cRuL5o
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> This intent message was generated by Chrome Platform Status
>>>>>>>>>> <https://www.chromestatus.com/>.
>>>>>>>>>>
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>>>>>>> .
>>>>>>>
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>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAPV%2BSg_%3D%3DywYCB%2B6ZsaXAndHpX9c_c_mBtU47KBEmX6Qm1J6vA%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>>>> .
>>>>>>
>>>>>

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