Client
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 Client interface represents an executable context such as a Worker, or a SharedWorker. Window clients are represented by the more-specific WindowClient. You can get Client/WindowClient objects from methods such as Clients.matchAll() and Clients.get().
Instance methods
Client.postMessage()-
Sends a message to the client.
Instance properties
Client.frameTypeRead only-
The client's frame type as a string. It can be
"auxiliary","top-level","nested", or"none". Client.idRead only-
The universally unique identifier of the client as a string.
Client.typeRead only-
The client's type as a string. It can be
"window","worker", or"sharedworker". Client.urlRead only-
The URL of the client as a string.
Specifications
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Browser compatibility
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frameType
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id
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postMessage
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type
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url
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Legend
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- Full support
- Full support
- No support
- No support