Fix error thrown with utf8 decoding

Author: D4nte

examples/web-chat/src/Message.ts

@@ -19,11 +19,7 @@ export class Message {
           return new Message(chatMsg, wakuMsg.timestamp);
         }
       } catch (e) {
-        console.error(
-          "Failed to decode chat message",
-          wakuMsg.payloadAsUtf8,
-          e
-        );
+        console.error("Failed to decode chat message", e);
       }
     }
     return;

src/lib/waku_message/index.ts

@@ -256,7 +256,11 @@ export class WakuMessage {
       return "";
     }
 
-    return bytesToUtf8(this.proto.payload);
+    try {
+      return bytesToUtf8(this.proto.payload);
+    } catch (e) {
+      return "";
+    }
   }
 
   get payload(): Uint8Array | undefined {