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 inService Workers.
TheClient interface represents an executable context such as aWorker, or aSharedWorker.Window clients are represented by the more-specificWindowClient. You can getClient/WindowClient objects from methods such asClients.matchAll() andClients.get().
In this article
Instance methods
Client.postMessage()Sends a message to the client.
Instance properties
Client.frameTypeRead onlyThe client's frame type as a string. It can be
"auxiliary","top-level","nested", or"none".Client.idRead onlyThe universally unique identifier of the client as a string.
Client.typeRead onlyThe client's type as a string. It can be
"window","worker", or"sharedworker".Client.urlRead onlyThe URL of the client as a string.
Specifications
| Specification |
|---|
| Service Workers Nightly> # client-interface> |