Tainted canvases may not be exported

Question

I want to save my canvas to a img. I have this function:

function save() {
    document.getElementById(\"canvasimg\").style.border = \"2px solid\";
    var d         


        

Answer 1

In my case I was drawing onto a canvas tag from a video. To address the tainted canvas error I had to do two things:

• Ensure Access-Control-Allow-Origin header is set in the video source response (proper setup of crossdomain.example.com)
• Set the video tag to have crossorigin="anonymous"