On 6/17/22 10:59 AM, Ming-Ying Chung wrote:
Contact emails
[email protected], [email protected], [email protected]
Explainer
https://github.com/darrenw/docs/blob/main/explainers/beacon_api.md
<https://github.com/darrenw/docs/blob/main/explainers/beacon_api.md>
Specification
https://clelland.github.io/page-unload-beacon/spec.html
<https://clelland.github.io/page-unload-beacon/spec.html>(In draft state)
Summary
A stateful API for beacons that has the browser control the time
beacons are sent.
Existing beacon APIs are all based around a developer constructing and
sending a beacon, and there's no good time for that "send" call to be
made. (Handlers such as 'unload' are often ignored, for example.) This
API delegates the sending to the browser itself, so it can support
beacons on page unload or on page hide, without the developer having
to implement send calls at exactly the right times.
Blink component
Blink>Network
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ENetwork>
TAG review
None yet.
I'd recommend filing a TAG review as well as asking for signals now, to
allow folks plenty of time to respond.
TAG review status
N/A
Risks
Interoperability and Compatibility
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?
Goals for experimentation
The intent is for experiments to learn that developers can easily
adopt the API shapes to achieve current use cases in addition to
getting feedback from them. The experiment also aims to test the
stability and reliability of the API.
Ongoing technical constraints
In M104, the API described in the explainer is not yet fully
developed, such that the API
*
Supports only the GET method. Setting it to POST will fall back to
GET.
*
Does not support request payload, i.e. it does not send out data
set by setData(data).
*
Does not support pageHideTimeout.
*
Does not recover from browser crashes, forced closures, network
failure, etc.
Debuggability
There are no particular debugging APIs made available or Chrome
DevTools integrations for this OT. We plan to build an integration
with Chrome DevTools to provide a better developer experience. This OT
will allow us to get feedback that helps us build the right design.
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, 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>?
No, basic tests are present and we will be adding more as we complete
more of the implementation.
Flag name
PendingBeaconAPI
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1293679
<https://bugs.chromium.org/p/chromium/issues/detail?id=1293679>
Launch bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1323615
<https://bugs.chromium.org/p/chromium/issues/detail?id=1323615>
Estimated milestones
M104 for off-by-default experiment
Just to confirm, the request is only for a single milestone (104)?
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5690553554436096
<https://chromestatus.com/feature/5690553554436096>
Links to previous Intent discussions
Intent to prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAG%2BRaU7yMQ%2BRkeSpXhgbfCSGb4BvpW-exTUFZzb_eMFRE%2B_syQ%40mail.gmail.com
<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/cag+rau7ymq+rkespxhgbfcsgb4bvpw-extufzzb_emfre+_...@mail.gmail.com>
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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