<script src="../include.js"></script>
<script>    
    function setDesignMode(value) {
        document.designMode = value;
        println(`document.designMode after setting to "${value}": ${document.designMode}`);
    }
    
    test(() => {
        println(`document.designMode initial value: ${document.designMode}`);
        
        setDesignMode("invalid");
        setDesignMode("on");
        setDesignMode("off");
        setDesignMode("ON");
        setDesignMode("OFF");
    });
</script>