I agree that the "non-active documents" part would be a fraction of the
usage you stated, and hence likely very small.

Having a Finch kill-switch handy and carefully monitoring the rollout
sound like a reasonable approach to me.

On Wed, Oct 30, 2024 at 8:06 PM Mason Freed <mas...@chromium.org> wrote:

> On Wed, Oct 30, 2024 at 3:47 AM Yoav Weiss (@Shopify) <
> yoavwe...@chromium.org> wrote:
>
>> What are the current usecounters for `showPopover()` and `showModal()`?
>> Have we looked at current usage to have enough confidence that it's
>> currently being try/catched?
>>
>
> Yeah, good questions. So there aren't use counters for `showPopover()`,
> but the overall use counter for popovers is 0.4% currently
> <https://chromestatus.com/metrics/feature/timeline/popularity/4191>. And
> the `showModal()` use counter is at 0.08%
> <https://chromestatus.com/metrics/feature/timeline/popularity/3726>. The
> important bit is that I would expect that a vanishingly-small percentage of
> these uses falls into the bucket affected by this change: calling those
> methods while the document is inactive. I don't think I could find that
> type of usage via HTTP Archive, so it'd have to be via a specific use
> counter for that case. Instead, my plan has been to monitor carefully, and
> Finch this change back off in the case that there is real usage of this
> case. LMK what you think.
>
> Thanks,
> Mason
>
>
>
>> On Tue, Oct 29, 2024 at 4:50 PM Mason Freed <mas...@chromium.org> wrote:
>>
>>> Contact emailsmas...@chromium.org
>>>
>>> Specificationhttps://github.com/whatwg/html/pull/10705
>>>
>>> Summary
>>>
>>> This is a corner case change that hopefully does not impact developers.
>>> Previously calling `showPopover()` or `showModal()` on a popover or dialog
>>> that resides within an inactive document would silently fail. I.e. no
>>> exception would be thrown, but since the document is inactive, no popover
>>> or dialog would be shown. As of the
>>> https://github.com/whatwg/html/pull/10705 spec PR, these situations now
>>> throw InvalidStateError.
>>>
>>>
>>> Blink componentBlink>DOM
>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM>
>>>
>>> TAG reviewNone
>>>
>>> TAG review statusNot applicable
>>>
>>> Risks
>>>
>>>
>>> Interoperability and Compatibility
>>>
>>> There is a *very* slight compat risk, if developers are counting on
>>> these operations (showPopover/showModal in inactive document) not throwing
>>> exceptions. But there are no known use cases for that, so the risk should
>>> be minimal.
>>>
>>>
>>> *Gecko*: No signal
>>>
>>> *WebKit*: No signal
>>>
>>> *Web developers*: No signals
>>>
>>> *Other signals*:
>>>
>>> WebView application risks
>>>
>>> Does this intent deprecate or change behavior of existing APIs, such
>>> that it has potentially high risk for Android WebView-based applications?
>>>
>>> None
>>>
>>>
>>> Debuggability
>>>
>>> None
>>>
>>>
>>> Will this feature be supported on all six Blink platforms (Windows, Mac,
>>> Linux, ChromeOS, Android, and Android WebView)?Yes
>>>
>>> Is this feature fully tested by web-platform-tests
>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
>>> ?Yes
>>>
>>> https://chromium-review.googlesource.com/c/chromium/src/+/5943740
>>>
>>>
>>> Flag name on chrome://flagsTopLayerInactiveDocumentExceptions
>>>
>>> Finch feature nameTopLayerInactiveDocumentExceptions
>>>
>>> Requires code in //chrome?False
>>>
>>> Tracking bughttps://crbug.com/373684393
>>>
>>> Estimated milestones
>>> Shipping on desktop 132
>>> DevTrial on desktop 132
>>> Shipping on Android 132
>>> DevTrial on Android 132
>>> Shipping on WebView 132
>>>
>>> Anticipated spec changes
>>>
>>> Open questions about a feature may be a source of future web compat or
>>> interop issues. Please list open issues (e.g. links to known github issues
>>> in the project for the feature specification) whose resolution may
>>> introduce web compat/interop risk (e.g., changing to naming or structure of
>>> the API in a non-backward-compatible way).
>>> None
>>>
>>> Link to entry on the Chrome Platform Status
>>> https://chromestatus.com/feature/6352111728852992?gate=5229499854356480
>>>
>>> This intent message was generated by Chrome Platform Status
>>> <https://chromestatus.com/>.
>>>
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>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM%3DNeDgP3vEKfHhwf7WTaKn1LWK0GF3JzCq7yXrn_Axwx9d0aQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>>

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