EmptyHTMLtaginaneditabledivdisappearswhenbackspaceispressedonFirefox

I'm using Firefox and I have this HTML code:

   This is an empty tag :  and this is this is not

When I try to delete a character by pressing the "SUPPR" or "BACKSPACE" key, it removes the for no reason.

It works on Chrome.

Check here: https://jsfiddle.net/t5jgb04y/ And then try to delete a character.

我认为在这种情况下，Firefox比Chrome更加智能，因为您无法在内使用此标记执行任何操作

b {
  background-color: lightblue;
  padding: 10px;
}

  This is an empty tag :  and this is not