Error when trying to drive 360° servo

I just tried to drive an SG90 Micro Servo with 360° gear from an Original Espruino, wired to pin C7 (as the example suggests) - { range:2 } was the outcome of another test with an "ordinary" SG90.

var Servo = require('servo').connect(C7, { range:2 });

let Count = 0;

function move () {
  if (Count < 10) {
    Count++;
    Servo.move(1, move);
  }
}
move();

However, when uploading this code from the Web IDE it leads to an endless loop of error messages (and finally crashes the Chrome browser):

Uncaught Error: Pulse Time given for digitalPulse is less than 0, or not a number
 at line 1 col 87
...Pulse(l,1,g+E.clip(b,0,1)*e);c+=1E3/(­20*f)
                               ^
in function called from system
...

Does this code try to recursively call Servo.move rather than my function move? But why does it then lead to an endless loop?

Amendment: renaming my function move to moveServo still loops endlessly