if (typeof ServiceWorkerGlobalScope === "function") { | |
self.onmessage = function (e) { e.source.postMessage("ping"); }; | |
} else if (typeof SharedWorkerGlobalScope === "function") { | |
onconnect = function (e) { | |
var port = e.ports[0]; | |
port.onmessage = function () { port.postMessage("ping"); } | |
port.postMessage("ping"); | |
}; | |
} else if (typeof DedicatedWorkerGlobalScope === "function") { | |
self.postMessage("ping"); | |
} |