title: Chrome Debugger Breakpoint not Working
body: <p>Can't seem to find an answer as to why <code>debugger;</code> isn't working.</p>
  
  <pre><code>        RSVP.aggregate([{
              $lookup: {
                  from: "users", // collection name in db
                  localField: "userId",
                  foreignField: "_id",
                  as: "user"
              }
          }
          ]).exec( (err, rsvpList) =&gt; {
              if (err) throw err("Mongoose aggregate failed to join rsvps to users: " + err);
              console.log('rsvp: ' + rsvpList[0].user.toString());
              debugger;
          });
  </code></pre>