Hi Christian,

I can see the issue. Do you already have a solution to ensure that the
interface won't be available for WebView once the feature is fully
released, and is it the case that the Origin Trial overrides this solution?


Sincerely,
[image: Google Logo]
Peter Birk Pakkenberg
Software Engineer
[email protected]
+447469379358


On Mon, 27 Jun 2022 at 16:53, Christian Biesinger <[email protected]>
wrote:

> Yes, my concern is the "FedCm" origin trial.
>
> In particular, webview will not have an implementation on the embedder
> side, so the API will not work. But since the origin trial code does not
> know that, the API will still be exposed to websites. This means the
> website can not do feature detection and calling the API will just not
> work. This is an unfortunate state of affairs and may actually break
> real-world websites.
>
> (Thinking of the [RuntimeEnabled] attribute in IDL)
>
> On Mon, Jun 27, 2022 at 4:52 AM Peter Birk Pakkenberg <[email protected]>
> wrote:
>
>> Hi Christian,
>>
>> Certainly.
>> The answer is currently yes and no, respectively. Webview shares the
>> android build target, so they are tied together right now.
>>
>> Do you have a specific trial that you are concerned about? If the trial
>> in question requires implementation in the embedder, then it's still
>> possible to simply not provide any implementation for the WebView embedder,
>> which will make the trial a no-op on that platform.
>>
>> If the trial exists entirely in shared code, then we would prefer that
>> the trial goes ahead on WebView along with the rest of the Android
>> platform, since that means it will be enabled on WebView when the feature
>> launches, and in my opinion it would be better to have the feature tested
>> before launching it, which is not happening today.
>>
>> Sincerely,
>> [image: Google Logo]
>> Peter Birk Pakkenberg
>> Software Engineer
>> [email protected]
>> +447469379358 <+44%207469%20379358>
>>
>>
>> On Fri, 24 Jun 2022 at 17:59, Christian Biesinger <
>> [email protected]> wrote:
>>
>>> Can you just clarify -- will a platform of "Android" enable an OT on
>>> webview as well? If yes is there a way not to do that?
>>>
>>> Christian
>>>
>>> On Fri, Jun 24, 2022 at 7:16 AM 'Peter Birk Pakkenberg' via blink-dev <
>>> [email protected]> wrote:
>>>
>>>> Hello blink-dev@
>>>>
>>>> We have now enabled origin trials on WebView for 103 beta.
>>>> We aim to enable it on the stable channel in 104.
>>>>
>>>> Please note that due to the limited beta channel penetration for
>>>> WebView, you may not see much traffic on your trials yet.
>>>>
>>>> Sincerely,
>>>> [image: Google Logo]
>>>> Peter Birk Pakkenberg
>>>> Software Engineer
>>>> [email protected]
>>>> +447469379358 <+44%207469%20379358>
>>>>
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>>>> .
>>>>
>>>

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