added alive check in doodle3dapi

src/doodle3dapi.js

@@ -81,6 +81,7 @@ export default class extends EventDispatcher {
 
 	async _update () {
 		while (this.autoUpdate) {
+			if (this.alive) {
 				try {
 					this.state = await this.info.status();
 
@@ -88,6 +89,9 @@ export default class extends EventDispatcher {
 				} catch(error) {
 					await this.checkAlive();
 				}
+			} else {
+				await this.checkAlive();
+			}
 
 			await sleep(this.updateInterval);
 		}