constants.js

export const ELEMENT_NAME = 'progressive-image';
export const MESSAGES = {
  placeholderElement: {
    missing: '<progressive-image> requires a <img> or <svg> element as its child. See https://andreruffert.github.io/progressive-image-element/examples'
  },
  dimensions: {
    missing: 'An <img> element was loaded, but had no dimensions specified. Specifying dimensions is necessary. See https://github.com/andreruffert/progressive-image-element/pull/4'
  }
};