Detect and fix leaky labels for disabled inputs

dom-checkbox-label-test.js

var lbl = document.createElement('label'),
    chk = document.createElement('input'),
    proto, lblOnClick;
chk.type = 'checkbox';
chk.disabled = true;
lbl.appendElement(chk);
lbl.click();
if (chk.checked) {
    // Labels need to be fixed
    proto = Object.getPrototypeOf(lbl);
    lblOnclick = function(){
        if(this.for.disabled) {
            // prevent click from happening
        }
    }
    proto.setEventHandler('click', lblOnClick);
}