Service-Worker header

The HTTP Service-Worker request header is included in fetches for a service worker's script resource. This header helps administrators log service worker script requests for monitoring purposes.

Header type Request header
Forbidden request header No

Syntax

http
Service-Worker: script

Directives

script

A value indicating that this is a script. This is the only allowed directive for this header.

Specifications

Specification
Service Workers Nightly
# service-worker

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Service-Worker request header for logging service worker script resource requests.
Chrome – Full support
Chrome 38 (Release date: 2014-10-07)
footnote Full support
Edge – Full support
Edge 16 (Release date: 2017-10-17)
footnote Full support
Firefox – Full support
Firefox 44 (Release date: 2016-01-26)
footnote Full support
Opera – Full support
Opera 25 (Release date: 2014-10-15)
footnote Full support
Safari – Full support
Safari 11.1 (Release date: 2018-04-12)
footnote Full support
Chrome Android – Full support
Chrome Android 38 (Release date: 2014-10-08)
footnote Full support
Firefox for Android – Full support
Firefox for Android 44 (Release date: 2016-01-26)
footnote Full support
Opera Android – Full support
Opera Android 25 (Release date: 2014-10-16)
footnote Full support
Safari on iOS – Full support
Safari on iOS 11.3 (Release date: 2018-03-29)
footnote Full support
Samsung Internet – Full support
Samsung Internet 3 (Release date: 2015-04-10)
footnote Full support
WebView Android – Full support
WebView Android 38 (Release date: 2014-10-08)
footnote Full support
WebView on iOS – Full support
WebView on iOS 11.3 (Release date: 2018-03-29)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also