Contact emails yyanagis...@google.com, dome...@chromium.org
Explainer None Specification https://html.spec.whatwg.org/multipage/workers.html#shared-workers-and-the-sharedworker-interface Summary For a long time, SharedWorker has been disabled on Android due to concerns about its unpredictable process lifecycle. We believed that SharedWorker instances might terminate unexpectedly, without noticing to users or web developers, which we considered unacceptable. However, a recent discussion on GitHub (https://github.com/whatwg/html/issues/11205) suggests that the unpredictable nature of SharedWorker's process lifecycle might not be as significant an issue as we once thought. Based on this, we plan to re-enable SharedWorker on Android while simultaneously investigating this behavior to ensure a stable and reliable experience. Blink component Blink>Workers TAG review None TAG review status Not applicable Risks Interoperability and Compatibility While Chrome has been the sole major browser not to offer SharedWorker, this change aims to close that gap. However, unlike on desktop, Android's unpredictable process lifecycle presents a unique risk. SharedWorker instances might terminate unexpectedly, for example, when a Chrome app is moved to the background and then foregrounded. This inherent uncertainty in the Android environment is a key risk when running SharedWorker. Gecko: Shipped/Shipping WebKit: Shipped/Shipping Web developers: Positive As you can see in http://crbug.com/40290702, SharedWorker support on Android has been a long-awaited feature by web developers. This demonstrates a clear and sustained demand from the developer community for this capability. Other signals: Ergonomics n/a Activation n/a Security This feature is already shipped on desktop, and no new security risks are introduced with the Android implementation. 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 Goals for experimentation Ongoing technical constraints None. Debuggability This feature is already shipped on desktop, and no new debuggability issues should be introduced with the Android implementation. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? No This aims to make SharedWorker supported on Android and Android WebView. SharedWorker has been supported other than them. Is this feature fully tested by web-platform-tests? Yes SharedWorker tests under https://wpt.fyi/results/workers. eg https://wpt.fyi/results/workers/SharedWorker-simple.html Note that since wpt.fyi runs tests on Linux not Android for Chromium. DevTrial instructions https://developer.mozilla.org/en-US/docs/Web/API/SharedWorker/SharedWorker Flag name on about://flags None Finch feature name SharedWorker Requires code in //chrome? False Tracking bug https://crbug.com/40290702 Measurement SharedWorkerStart filtered by Android. Estimated milestones Origin trial Android first 140 Origin trial Android last 144 DevTrial on Android 140 Link to entry on the Chrome Platform Status https://chromestatus.com/feature/6265472244514816?gate=5096285778214912 This intent message was generated by Chrome Platform Status. -- 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/6879be98.2b0a0220.72055.015d.GAE%40google.com.
