Client: frameType property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

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Note: This feature is only available in Service Workers.

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 "auxiliary", "top-level", "nested", or "none".

Value

One of these four strings: "auxiliary", "top-level", "nested", or "none".

Specifications

Specification
Service Workers # client-frametype

Browser compatibility

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