var c=document.getElementById('imageView'),ctx=c.getContext('2d'),i=new Image();i.onload=function(){ctx.drawImage(i,0,0,c.width,c.height);};fetch('your-image-url').then(response=>response.blob()).then(blob=>{var r=new FileReader();r.onloadend=function(){i.src=r.result};r.readAsDataURL(blob)});