28199 2015-03-12 05:35:00 +0000 Allow source of MessageEvent to be ServiceWorker object / Client object for messaging in Service Worker 2015-05-06 13:33:29 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED WONTFIX P2 normal Unsorted 1 jungkees ian annevk ian jakearchibald jsbell mike slightlyoff contributor oldest_to_newest 118536 0 jungkees 2015-03-12 05:35:00 +0000 The service worker messaging behavior (between a service worker and its client) has been sorted out (https://github.com/slightlyoff/ServiceWorker/issues/609#issuecomment-75739069) and spec'ed (6dfce0aacceeef41c813c4680c7f67b96f80c4b6). - ServiceWorker.postMessage: https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#service-worker-postmessage - Client.postMessage: https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#client-postmessage For this, we'd like HTML extend the event attribute of MessageEvent to be able to include ServiceWorker object and Client object. Could you address this in the IDL definition and the source attribute definition of MessageEvent? 119097 1 ian 2015-03-30 22:58:54 +0000 Why do you want to use MessageEvent specifically rather than a new Event class? 119118 2 jungkees 2015-03-31 02:19:39 +0000 The reason is consistency to the existing web messaging APIs. Authors would expect that they're to use the same API. Indeed, the _source_ attribute is the only property that SW wants to extend. 119193 3 jungkees 2015-04-02 10:17:57 +0000 Hixie, FYI, we started a discussion about some more extension point: https://github.com/slightlyoff/ServiceWorker/issues/669. So, maybe we'll need a subclass. But I'm not sure what a good direction is as of now. I'll update if we make progress on that. 119329 4 ian 2015-04-07 22:38:42 +0000 It's not the same API if you're using a different set of attributes... 120134 5 jungkees 2015-05-06 13:32:00 +0000 We defined the ServiceWorkerMessageEvent(https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#serviceworkermessage-event-interface) and the ExtendableMessageEvent(https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#extendablemessage-event-interface) in service workers spec.