How to show error text in tooltip Quill Editor

Question

The quill interface has the ability to add an iframe, how to show the error text in the tooltip for entering a link if the url is invalid?

let Video = Quill.import('formats/video');
Video.sanitize = function validateVideoLink(value){
  if (!/^https?:/.test(value)){
    console.log('Invalid link')
  }
}