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.
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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