code: function(option, inputValue) {
  		var optVal = option.value.toLowerCase(),
  			inptVal = inputValue.toLowerCase(),
  			label = option.getAttribute('label'),
  			text = option.text.toLowerCase();
  
  		/*
  		"Each option element that is a descendant of the datalist element, that is not disabled, and whose value is a string that isn't the empty string, represents a suggestion. Each suggestion has a value and a label."
  		"If appropriate, the user agent should use the suggestion's label and value to identify the suggestion to the user."
  		*/
  		return Boolean(
  			option.disabled === false &&
  				((optVal !== '' && optVal.indexOf(inptVal) !== -1) ||
  					(label && label.toLowerCase().indexOf(inptVal) !== -1) ||
  					(text !== '' && text.indexOf(inptVal) !== -1))
  		);
  	}
docs: Check for whether this is a valid suggestion