fix

tts/watson/index.js

@@ -17,10 +17,10 @@ module.exports= class extends BaseEngine {
 				'Content-Type': 'application/json',
 				'Authorization': authorization
 			},
-			body: {
+			body: JSON.stringify({
 				text: text
-			}
+			})
 		};
-		return fetch(url);
+		return fetch(url,opts);
 	}
 };