Detect scroll overflow

gistfile1.txt

var docWidth = document.documentElement.offsetWidth;

[].forEach.call(
  document.querySelectorAll('*'),
  function(el) {
    if (el.offsetWidth > docWidth) {
      console.log(el);
    }
  }
);

************* OR

var all = document.getElementsByTagName("*"), i = 0, rect, docWidth = document.documentElement.offsetWidth;
for (; i < all.length; i++) {
    rect = all[i].getBoundingClientRect();
    if (rect.right > docWidth || rect.left < 0){
        console.log(all[i]);
        all[i].style.borderTop = '1px solid red';
    }
}

******* IF DOESN'T WORKS
var frames = document.getElementsByTagName("iframe");
for(var i=0; i < frames.length; i++){
   var frame = frames[i];
   frame = (frame.contentWindow || frame.contentDocument);
   var all = frame.document.getElementsByTagName("*"),rect,
       docWidth = document.documentElement.offsetWidth;
   for (var j =0; j < all.length; j++) {
       rect = all[j].getBoundingClientRect();
       if (rect.right > docWidth || rect.left < 0){
           console.log(all[j]);
           all[j].style.borderTop = '1px solid red';
       }
   }
}


**************** OR:

javascript:(function(d){var w=d.documentElement.offsetWidth,t=d.createTreeWalker(d.body,NodeFilter.SHOW_ELEMENT),b;while(t.nextNode()){b=t.currentNode.getBoundingClientRect();if(b.right>w||b.left<0){t.currentNode.style.setProperty('outline','1px dotted red','important');console.log(t.currentNode);}};}(document));




********* CREDITS:
https://stackoverflow.com/questions/31458477/find-element-that-is-causing-the-showing-of-horizontal-scrollbar-in-google-chrom
https://css-tricks.com/findingfixing-unintended-body-overflow/