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web api instance property

Client: frameType property

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Available in 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

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.