3 ms·

Same here on Edge.

• moffkalast 4y ago
  Also on Chrome, I'm pretty sure it's a joke.
  • genezeta 4y ago
    It does look like a bug. Like the iframe and the parent are sending each other a message to match the heights of the content document and the iframe element but it miss-calculates producing a vertical scroll to appear, which then posts another message back to adjust again and so on, back and forth.