openvidu-browser: extend error logs to avoid empty objects

openvidu-browser/src/OpenVidu/Publisher.ts

@@ -496,7 +496,7 @@ export class Publisher extends StreamManager {
             };
 
             const getMediaError = error => {
-                logger.error(error);
+                logger.error(`getMediaError: ${JSON.stringify(error)}`);
                 this.clearPermissionDialogTimer(startTime, timeForDialogEvent);
                 if (error.name === 'Error') {
                     // Safari OverConstrainedError has as name property 'Error' instead of 'OverConstrainedError'

openvidu-browser/src/OpenVidu/Session.ts

@@ -1171,7 +1171,7 @@ export class Session extends EventDispatcher {
             if (!this.connection.disposed && !forced) {
                 this.openvidu.sendRequest('leaveRoom', (error, response) => {
                     if (error) {
-                        logger.error(error);
+                        logger.error(`leaveRoom error: ${JSON.stringify(error)}`);
                     }
                     this.openvidu.closeWs();
                 });

openvidu-browser/src/OpenViduInternal/WebRtcStats/WebRtcStats.ts

@@ -304,7 +304,7 @@ export class WebRtcStats {
             await fetch(url, configuration);
 
         } catch (error) {
-            logger.error(error);
+            logger.error(`sendStats error: ${JSON.stringify(error)}`);
         }
     }