How to Force a DOM Redraw/Refresh in Chrome for Mac?

Force DOM Redraw/Refresh in Chrome for Mac

When Chrome for Mac encounters valid HTML/CSS, it sometimes renders the elements incorrectly or not at all. While inspecting the DOM in the browser console usually triggers a redraw, a more automated solution is desirable.

The following JS snippet works effectively in most browsers and operating systems:

el.style.cssText += ';-webkit-transform:rotateZ(0deg)'
el.offsetHeight
el.style.cssText += ';-webkit-transform:none'

However, Chrome for Mac bypasses the redraw triggered by offsetHeight. A workaround is to use setTimeout to temporarily change the border of the element, forcing a redraw:

$(el).css("border", "solid 1px transparent");
setTimeout(function()
{
    $(el).css("border", "solid 0px transparent");
}, 1000);

This approach is cumbersome and noticeable. A more efficient method for forcing a redraw on Chrome for Mac is to insert an empty text node into the element:

var forceRedraw = function(element){

    if (!element) { return; }

    var n = document.createTextNode(' ');
    var disp = element.style.display;  // don't worry about previous display style

    element.appendChild(n);
    element.style.display = 'none';

    setTimeout(function(){
        element.style.display = disp;
        n.parentNode.removeChild(n);
    },20); // you can play with this timeout to make it as short as possible
}

This approach guarantees a redraw and is more efficient than the border method.

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