I want to implement the feature  to automatically resume the recently read 
articles when I open the app.
1. the user opens the address "pwa.com/"
2. App automatically redirects to the last read article "pwa.com/articles/1"
But when the user presses back, the app exits directly and it should go 
back to the article list page.


On Saturday, 29 October 2022 at 03:09:49 UTC+8 shiva...@chromium.org wrote:

> Apologies for the delay.
>
> 1. history list: [a.com, b.com]. none of the entries are skippable 
> because a.com got a click and b.com hasn't added any new entry yet.
> 2. [a.com, b.com, b.com/entry1] again no entry should be skippable since 
> b.com got a user interaction. 
> 3. On reload, there should not be any change in the skippable state of the 
> entries as reloads do not interact with the intervention. Can you check at 
> this point if you long press on the back button, does it show b.com or 
> not.
> 4. I wonder if there is something about the reload that only leads to one 
> b.com entry and therefore pressing the back button navigates to a.com.
>
> It would be better to create a crbug 
> <https://bugs.chromium.org/p/chromium/issues/entry> for investigating 
> this and continue any follow up discussions on that.
>
>
> On Wed, Aug 17, 2022 at 7:17 AM eyal sadeh <eyals...@gmail.com> wrote:
>
>> Hello!
>> I experience a use case where this intervention hurts user-experience, 
>> would love to hear your thoughts:
>> 1. User is on a.com and clicks to go to b.com (Single Page Application).
>> 2. The user interacts with the page, and a new history entry is created 
>> using pushState.
>> 3. The user press the reload button (alternatively, in Android, sometimes 
>> the page reloads automatically).
>> 4. The user press the back button, b.com is skipped, popstate event 
>> isn't triggered, and the user is being navigated to a.com.
>>
>> I feel this use case is valid and b.com shouldn't be skipped. I'd 
>> suggest to skip states only if added during the current session.
>>
>> Thanks in advance,
>> Eyal
>>
>> On Monday, June 7, 2021 at 7:40:03 PM UTC+3 mmo...@google.com wrote:
>>
>>> Hello!
>>>
>>> It sounds to me like requesting that Navigations initiated from 
>>> Notification handlers be treated as a user-gesture-initiated would be 
>>> enough to make this use case work correctly.  Filed: crbug.com/1217190 if 
>>> that is true.
>>>
>>> (The fact that you use history.replace first here likely should not 
>>> affect the situation.  So long as the subsequent history.push is treated as 
>>> gesture-initiated you should get the back button behaviour you ask for.)
>>>
>>> -Michal
>>>
>>> On Mon, Jun 7, 2021 at 11:11 AM Andrea Puddu <m...@nuragic.io> wrote:
>>>
>>>> Hello,
>>>>
>>>> This "intervention" by Chrome is breaking a valid use case in our app 
>>>> (Progressive Web App). 
>>>>
>>>> Specifically:
>>>> - users click on a push notification (the app is in background)
>>>> - notifications open a link, which is e.g. 
>>>> *https://example.app/pwa?noticationId=12345 
>>>> <https://example.app/pwa?noticationId=12345>*
>>>> - the PWA opens, it fetches the event associated from the 
>>>> *notificationId*, and redirect to the corresponding view
>>>> - when users hit the back button we don't want the PWA to be closed 
>>>> immediately: it must redirect to the "home" first
>>>>
>>>> To do so, in the notification handler we do:
>>>> *history.replace(homeURL);*
>>>> * history.push(eventURL);*
>>>>
>>>> Note that this works perfectly fine in Safari, Firefox, etc. because 
>>>> well, it's just using standard APIs. Moreover, this is widely used pattern 
>>>> in native apps: when you click a notification it opens the app, but if you 
>>>> hit the "back button" in Android where does it goes? At the app "home", 
>>>> indeed. 
>>>>
>>>> This is not pretending to hurt anyone, in fact it is done to improve 
>>>> user's experience. 
>>>>
>>>> I'm sorry but you need to improve your "intervention" heuristics, you 
>>>> can't break arbitrary apps out there. And this is a B2B app, not a scam 
>>>> website.
>>>>
>>>> Thanks,
>>>> -Andrea
>>>>
>>>> El jueves, 16 de mayo de 2019 a las 17:33:36 UTC+2, 
>>>> shiva...@chromium.org escribió:
>>>>
>>>>> (Response inline below.)
>>>>>
>>>>> On Tue, May 14, 2019 at 12:21 PM <lior...@gmail.com> wrote:
>>>>>
>>>>>> How would this affect SPA websites that use push.history to allow 
>>>>>> navigation?
>>>>>> Could you please clarify what could be the user's gesture?
>>>>>> Thanks ahead,
>>>>>> Lior
>>>>>>
>>>>>  
>>>>> As long as there is a user gesture on the document either before or 
>>>>> after history.pushState, the intervention would not happen.
>>>>> User gesture are actions like click (spec 
>>>>> <https://html.spec.whatwg.org/multipage/interaction.html#activation>, 
>>>>> Chrome's 
>>>>> article about user activation 
>>>>> <https://developers.google.com/web/updates/2019/01/user-activation>). 
>>>>>
>>>>>>
>>>>>> On Tuesday, May 7, 2019 at 10:08:04 PM UTC+3, Shivani Sharma wrote:
>>>>>>>
>>>>>>> (This intervention has been reviewed and approved for launch. As 
>>>>>>> discussed with API owners, announcing the change on blink-dev to ensure 
>>>>>>> that developers are made aware of this change.)
>>>>>>>
>>>>>>> Contact emails
>>>>>>> shiva...@chromium.org, jka...@chromium.org 
>>>>>>>
>>>>>>> Specification: 
>>>>>>> https://github.com/WICG/interventions/issues/21
>>>>>>>
>>>>>>> Summary
>>>>>>> Some pages makes it difficult or impossible for the user to go back 
>>>>>>> to the page they came from via the browser back button. This is 
>>>>>>> accomplished by redirects or by manipulating the browser history and 
>>>>>>> results in an abusive/annoying user experience. 
>>>>>>>
>>>>>>> The new behavior of the browser’s back button will be to skip over 
>>>>>>> pages that added history entries or redirected the user without ever 
>>>>>>> getting a user gesture. Note that the intervention only impacts the 
>>>>>>> browser 
>>>>>>> back/forward button UI and not the history.back/forward APIs.
>>>>>>>
>>>>>>> Here’s an example:
>>>>>>> User is on a.com and clicks to go to b.com
>>>>>>> b.com adds a history entry using pushState or navigates the user to 
>>>>>>> another page (c.com) without ever getting a user gesture. 
>>>>>>> b.com will then be skipped if the user presses back and user will 
>>>>>>> directly be navigated to a.com.
>>>>>>>
>>>>>>> Given the above, developers should be aware that if they want the 
>>>>>>> browser’s back button to land on a page that redirected after loading, 
>>>>>>> then 
>>>>>>> that page should have had a user gesture before redirecting. Developers 
>>>>>>> should also be aware that if a history entry is added but there is no 
>>>>>>> user 
>>>>>>> gesture by the time the user hits back, the page adding the history 
>>>>>>> entry 
>>>>>>> will be skipped and the popstate event will not fire.
>>>>>>>
>>>>>>> This feature will be supported on all six Blink platforms (Windows, 
>>>>>>> Mac, Linux,
>>>>>>> Chrome OS, Android, and Android WebView).
>>>>>>>
>>>>>>> Tracking bug
>>>>>>> crbug.com/907167
>>>>>>>
>>>>>>> Launch bug (internal only)
>>>>>>> crbug.com/909862
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>>  
>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/fd22997b-e4ba-465c-8729-4199270ff6b8%40chromium.org?utm_medium=email&utm_source=footer>
>>>>>> .
>>>>>>
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>>>> .
>>>>
>>>

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