画布从URL创建图像

Question

I have a url that generates images on canvas with parameters. I works ok when I load with browser.

The last line is:

 window.location = canvas.toDataURL("image/png");

When I try to use this url from another page like:

<img src="http://localhost/index.html?i=0 />

Doesnt load. How can i load it.

Thanks in advance.

Answer 1

It's a security issue. You can't read image data in canvas if the image is not on the same domain. There aren't any work-arounds, sorry