This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
BluetoothRemoteGATTServer.connected read-only property returns a boolean value that returns true while this script execution environment is connected to
this.device. It can be false while the user agent is physically connected.
var connected = BluetoothRemoteGATTServer.connected
The definition of 'connected' in that specification.
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||45.0 |
|Feature||Android||Android Webview||Firefox Mobile (Gecko)||Firefox OS||IE Mobile||Opera Mobile||Safari Mobile||Chrome for Android|
|Basic support||No support||No support||No support|
 Behind a flag. Chrome OS only.