Route did not return true when username is available

Question

my check50 returns the following error:

:( /check route confirms whether username is available
route did not return true when username is available
Log
sending GET request to /check?username=check50student1
checking that status code 200 is returned... 

my application has:

if (len(words) > 0):
    return jsonify(result=False), 200
else:
    return jsonify(result=True), 200

and my html has:

let input = document.querySelector('#username');
input.onkeyup = function() {
     $.get('/check?q=' + input.value, function(data) {
         //alert(data.result);
         let html = '';
         if (data.result === false) {
             html += 'USERNAME TAKEN';
             $('.checker').show();
              document.getElementById("submit").addEventListener("click", function(event){
                event.preventDefault()
                    });
                }
                document.querySelector('.checker').innerHTML = html;
          });
      };

Answer 1

As far as I know, it's jsonify(True).