Hi Antonio, Thank you for working on this - this is a great change: especially on Android it's very easy for users to accidentally disable, and then immediately re-enable notification permission, without realising that they have to visit the site again in order to continue receiving notifications. This creates a convenient recovery path in the way the spec intended.
We should monitor whether we could safely create a new subscription internally and pass it to the `pushsubscriptionchange` event, but as you mention it's not entirely clear what existing implementations of the event do. Manually creating a new subscription is safe in either scenario, and forward compatible with passing in one ourselves as `subscribe()` is designed to be called any number of times. Thanks, Peter On Fri, Apr 11, 2025 at 1:46 PM Antonio Sartori <antoniosart...@chromium.org> wrote: > Contact emailsantoniosart...@chromium.org > > ExplainerNone > > Specification > https://w3c.github.io/push-api/#the-pushsubscriptionchange-event > > Summary > > Fire the pushsubscriptionchange event in service workers when an origin > for which a push subscription existed in the past, but which was revoked > because of a permission change (from granted to deny/default), is > re-granted notification permission. The event will be fired with an empty > oldSubscription and newSubscription. > > > Blink componentBlink>PushAPI > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EPushAPI%22> > > Motivation > > This change is helpful for web developers and for users. On the one hand, > when regranting notification permissions, used are likely to expect to > start receiving again notifications right away. On the other hand, web > developers must basically keep trying resubscribing to notifications in > order to recover from a permission being ungranted and then granted again. > The specification supports the pushsubscriptionchange event, although is > relatively vague around the exact circumstances in which such event may or > should be fired. > > > Initial public proposalNone > > TAG reviewNone > > TAG review statusNot applicable > > Risks > > > Interoperability and Compatibility > > None > > > *Gecko*: Shipped/Shipping ( > https://bugzilla.mozilla.org/show_bug.cgi?id=1497429) Firefox seems to > already implement a similar behavior, see > https://bugzilla.mozilla.org/show_bug.cgi?id=1497429 > > *WebKit*: No signal Seems shipped, but couldn't figure out the exact > details. See > https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event > > *Web developers*: No signals Likely positive, see for example > https://issues.chromium.org/issues/40129474 > > *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 > > > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> > ?No > > Flag name on about://flagsNone > > Finch feature nameNone > > Non-finch justificationNone > > Requires code in //chrome?False > > Tracking bughttps://issues.chromium.org/issues/407523313 > > Launch bughttps://launch.corp.google.com/launch/4390563 > > Estimated milestones > > M137 > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/5147683423256576?gate=6273678305918976 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com/>. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+unsubscr...@chromium.org. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOzWxF6xvYb-0qkPaZbhNFuS86__DEg8curFPGRtuDak8x%3D31g%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOzWxF6xvYb-0qkPaZbhNFuS86__DEg8curFPGRtuDak8x%3D31g%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALt3x6nyXW7e6Z5Ay2TNEJcJUaTfK46o9icqijTLZ1NsgNT70Q%40mail.gmail.com.
