code: function isBrBeforeBlock(node, rootNode) {
        var next;
  
        if (!NodeType.isBr(node)) {
          return false;
        }
  
        next = findCaretPosition(1, CaretPosition.after(node), rootNode);
        if (!next) {
          return false;
        }
  
        return !CaretUtils.isInSameBlock(CaretPosition.before(node), CaretPosition.before(next), rootNode);
      }
docs: Jumps over BR elements <p>|<br></p><p>a</p> -> <p><br></p><p>|a</p>