function imgLoaded(url) {
  if(!url){
    return undefined
  }
  return new Promise(function(resolve, reject) {
    if (url.slice(0, 4) == 'data') {
      let img = new Image()
      img.onload = function() {
        resolve(img)
      }
      img.onerror = function() {
        reject('Image load error')
      }
      img.src = url
      return
    }
    let img = new Image()
    img.setAttribute("crossOrigin",'Anonymous')
    img.onload = function() {
      resolve(img)
    }
    img.onerror = function() {
      reject('Image load error')
    }
    img.src = url
  })
}
export default imgLoaded