Service Workers

	THIS PAGE MAY BE OUTDATED
	This article is in parts, or in its entirety, outdated. Hence, the information presented on this page may be incorrect, and should be treated with due caution until this flag has been lifted. Help by editing the article, or discuss its contents on the talk page.

Service Workers are presently being implemented in Gecko. Biweekly calls (2015-08-12 is the next one) are held on Wednesdays at 8 AM Pacific in the WebAPI Vidyo room to discuss status and blockers for consumers. Email Andrew Overholt [:overholt] if you want to be added to the meeting invite or just show up.

Most people working on the implementation hang out in #content on IRC.

Implementation status

Lots of code has been written and much functionality exists. There are a variety of prefs you can flip in about:config to turn them on: dom.serviceWorkers.enabled, dom.serviceWorkers.interception.enabled, etc.

Filing bugs (in Core :: DOM: Service Workers) describing problems you have is highly appreciated.

An audit of call sites where existing networking security functionality can be affected by a Service Worker's interception is underway. The results of this are filtering into Bugzilla and the remaining blockers are tracked as below.

Shipping on Desktop (planned for 44) (bug 1059784)

Bugzilla query error

Array ( [type] => error [message] => http-timed-out [params] => Array ( [0] => https://bugzilla.mozilla.org/bzapi/bug?blocks=1059784&resolution=---&include_fields=id&include_fields=summary&include_fields=status&include_fields=assigned_to&include_fields=resolution&order=bug_id+ ) ) 1

Bugs we should fix to be compatible with the specification (bug 1226983)

Bugzilla query error

Array ( [type] => error [message] => http-bad-status [params] => Array ( [0] => 502 [1] => Bad Gateway ) ) 1

Shipping on Fennec (aka Firefox for Android) (bug 1207262)

Full Query

ID	Summary	Status	Assigned to	Resolution
1210282	Intermittent android debug failures	NEW

1 Total; 1 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Refactoring for n content processes (bug 1231208)

Full Query

ID	Summary	Status	Assigned to	Resolution
1314658	Update the security check in NeckoParent::GetValidatedAppInfo	NEW
1355899	Stop eagerly transmitting the cookie permission to the content process for service workers	NEW
1360255	Add a test for loading a service-worker managed document in a new process	NEW
1429805	display service worker console messages on related windows in different child processes	NEW
1432311	fetch() requests initiated by a serviceworker are missing in the network panel	NEW
1472303	ServiceWorkerRegistration::Update() should block self-update during evaluation regardless of Inner implementation	NEW
1514916	Decide what to do with currently-failing console monitoring tests in parent-intercept mode	NEW
1604543	ServiceWorkerManager::ReportToAllClients needs to be updated for sw-e10s [syntax errors in script evaluation receive the reported-to-content MSG_SW_INSTALL_ERROR but not the syntax errors]	NEW

8 Total; 8 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Shipping for web content on Boot2Gecko (aka Firefox OS) (bug 1207265)

No results.

0 Total; 0 Open (0%); 0 Resolved (0%); 0 Verified (0%);

Shipping for Gaia (bug 1131322)

No results.

0 Total; 0 Open (0%); 0 Resolved (0%); 0 Verified (0%);

Things we likely won't get to in the first release supporting Service Workers (bug 1173500)

No results.

0 Total; 0 Open (0%); 0 Resolved (0%); 0 Verified (0%);

Demos/examples

• https://azasypkin.github.io/sw-tests/permanent-redirect/
• https://jakearchibald.github.io/trained-to-thrill/ - the canonical example
• https://www.pinterest.com/ - seems to be used for Push
• https://github.com/GoogleChrome/samples/tree/gh-pages/service-worker - a number of examples here
• https://busrouter.sg/ - Only offlines its app shell and not map tiles or other data.
• https://www.parleys.com/
• https://guitar-tuner.appspot.com/