let disable new line by jQuery

prevent a line break

<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<!-- 
<textarea name="sample" cols="50" rows="10" wrap="soft"></textarea> -->
<form>
<textarea name="sample" cols="50" rows="10" class="cancel"></textarea>
<input type="submit">
</form>

<script>
$('.cancel').bind('keydown', function(e){
	if(e.which == 13){
		return false;
	}
}).bind('blur', function(){
	var $textarea = $(this),
	text = $textarea.val(),
	new_text = text.replace(/\n/g, "");
	if(new_text!= text){
		$textarea.val(new_text);
	}
});
</script>

I can no longer break line when I press enter key within the textarea.