we have used aws s3 for image storing. When we tried convert image to base64. code working fine javascript but code is not angular

javascript code:

function getBase64Image(imgUrl, callback) {
    var img = new Image();
    // onload fires when the image is fully loadded, and has width and height
    img.onload = function(){
      var canvas = document.createElement("canvas");
      canvas.width = img.width;
      canvas.height = img.height;
      var ctx = canvas.getContext("2d");
      ctx.drawImage(img, 0, 0);
      var dataURL = canvas.toDataURL("image/png"),
          dataURL = dataURL.replace(/^data:image\/(png|jpg);base64,/, "");

      callback(dataURL); // the base64 string

    };

    // set attributes and src 
    img.setAttribute('crossOrigin', 'anonymous'); //
    img.src = imgUrl;

}
this.getBase64Image("imageURL", function(base64image){
     console.log(base64image);
});

It is working fine in javascript but angular throws below error

Access to image at 'https://examplecros.s3.us-east-2.amazonaws.com/images5.jpg' from origin 'http//localhost:4200' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. 5.jpg:1
Failed to load resource: net::ERR_FAILED