Exercise Tracker not passing *any test* despite working properly

Tell us what’s happening:

I have completed my app and tested it.

It is returning the correctly formatted objects and arrays each of the 5 user stories requested. However, none of the tests are passing when submitting my completed project.

I need help learning where to look for the possible causes.

I am very grateful for any pointers anyone can provide.

Your code so far

This is the git repository for the app, you can clone it into your own Rep.it and confirm its outputs:

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36.

Challenge: Exercise Tracker

Link to the challenge:


I had neglected to install and initialize cors headers.

After running npm i cors and loading it, 4 of the 5 tests are passing.

I can take it from here. I hope this helps someone troubleshooting a similar issue. :slightly_smiling_face: