WIP - Puck.js reading CSC (cycling speed cadence) BLE sensor to replace bike computer head unit with Puck.js or (later) Pixl.js

Hi,

anyone knows why this code

function setDisplayMode(displaymode) {
 print("setDisplayMode: ", displaymode);
 switch (displaymode) {
         case "switchToConnected":
           Pixl.menu();
           break;
         case "connecting":
           if (timer!==-1) {clearInterval(timer); timer = -1;}
           Pixl.menu();
           connect();
           break;
         case "livedata":
           print("livedata");
           Pixl.menu();
           if (timer==-1) {
             print("Set timer"); 
             timer = setInterval( function () {showLiveData(); }, 1000); 
             print("timer = ", timer);
           }
           break;
         case "menu":
           if (timer!==-1) {clearInterval(timer); timer = -1;}
           m=Pixl.menu(mainmenu);
           g.setFont8x12();
           m.draw();
           }
}

gives me this runtime error?

>setDisplayMode:  menu
=undefined
setDisplayMode:  connecting
Starting scan...
Uncaught SyntaxError: BREAK statement outside of SWITCH, FOR or WHILE loop
 at line 119 col 12
           break;
           ^
in function "setDisplayMode" called from line 1 col 28
setDisplayMode("connecting");
                           ^
in function "b" called from line 1 col 48
var b=d[c[a.selected]];"function"==typeof b&&b()
                                               ^
in function "select" called from line 1 col 10
b.select()
         ^
in function called from system

I looked it up a hundred times, this should be correct switch/case syntax, or is it not?