Facebook Integration in Golang -- 3

I am using following code to share post on facebook using goland but this does not show image on facebook

const url = "https://example1.com";
const imageUrl = "image url";
const description = "text";
const facebookShareUrl = `https://www.facebook.com/sharer/sharer.php?u=${encodeURIComponent(url)}&picture=${encodeURIComponent(imageUrl)}&description=${encodeURIComponent(description)}`;
window.open(facebookShareUrl, '_blank');