Meteor 2.7.3: simple todo list buttons not tappable?

Much appreciated. Tried that no luck, could be something I’m doing wrong but all I did was add a console.log line and that broke it:

  wsUrl = wsUrl.replace(/^.+\/\//, protocol);
  console.log('test');
  socket = new WebSocket(wsUrl);

I then get this:

=> Started proxy.                             
=> Started HMR server.                        
=> Errors prevented startup:                  
   
   While building for web.cordova:
   client.js:513:7: Unexpected token (513:7)
   
=> Your application has errors. Waiting for file change.
=> Started MongoDB.                           

Yes, I opened that issue as I found something similar.