SAME USER BEHAVIOR ON BOTH BRANCHES

THIS IS ON BRANCH THAT WORKS
App running on port 3001!
Mongoose connection successful.
GET / 304 4.303 ms - -
GET /css/style.css 304 1.974 ms - -
GET /app.js 304 4.209 ms - -
GET /neutral.jpeg 304 0.595 ms - -
GET /background.jpg 304 0.367 ms - -
GET /api/unsaved 304 12.908 ms - -
GET /api/saved 304 8.559 ms - -
POST /api/save 200 31.681 ms - 563
GET /api/saved 304 8.736 ms - -
GET /api/notes/5a56ced3c85fb50f10d2de2b 304 20.421 ms - -
GET /api/unsaved 304 16.458 ms - -
POST /api/note/5a56ced3c85fb50f10d2de2b 200 14.223 ms - 590
GET /api/saved 200 1.943 ms - 952
GET /api/notes/5a56ced3c85fb50f10d2de2b 200 5.468 ms - 896

THIS IS ON BRANCH THAT DOESN'T WORK
App running on port 3001!
Mongoose connection successful.
GET / 200 6.313 ms - 2692
GET /css/style.css 200 5.106 ms - 2888
GET /javascript/app.js 200 7.771 ms - 11383
GET /images/neutral.jpeg 200 1.333 ms - 252935
GET /images/background.jpg 200 1.636 ms - 1049469
note.create called, req.body:  undefined

"note.create called, req.body:  undefined" is inside my controller, which means a button click client side was able to trigger that...however, because req is undefined, the data that is supposed to be sent on click, is not being sent."