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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The frameType read-only property of the Client interface indicates the type of browsing context of the current Client. This value can be one of auxiliarytop-levelnested, or none.


var myFrameType = Client.frameType;




Specification Status Comment
Service Workers
The definition of 'frameType' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 43.0 44.0 (44.0)[1] No support ? No support
Feature Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 44.0 (44.0) ? No support ? No support 43.0

[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, fscholz, jpmedley, kscarfone
 Last updated by: chrisdavidmills,