var currentInnerHtml;
var element = new Image();
var elementWithHiddenContent = document.querySelector("#element-to-hide");
var innerHtml = elementWithHiddenContent.innerHTML;
element.__defineGetter__("id", function() {
currentInnerHtml = "";
});
setInterval(function() {
currentInnerHtml = innerHtml;
console.log(element);
console.clear();
elementWithHiddenContent.innerHTML = currentInnerHtml;
}, 1000);