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<!DOCTYPE HTML>
<html>
<title>Test Crossorigin</title>
<link rel="help" href="https://www.w3.org/TR/SVG/embedded.html#ImageElementCrossoriginAttribute">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script class="testbody" type="text/javascript">
function draw_and_read_image(image, should_throw) {
let c = document.createElement('canvas');
document.body.appendChild(c);
let ctx = c.getContext('2d');
ctx.drawImage(image, 0, 0);
function get_image_data() {
ctx.getImageData(0, 0, 4, 4);
}
if (should_throw) {
assert_throws_dom('SecurityError', get_image_data);
} else {
get_image_data();
}
document.body.removeChild(c);
}
async_test(t => {
let image = document.createElementNS("http://www.w3.org/2000/svg", "image");
image.setAttribute("href", "/images/green.png");
image.crossOrigin = "anonymous";
image.onload = t.step_func_done(() => {
draw_and_read_image(image, false);
});
image.onerror = t.unreached_func();
}, "Can get pixels of canvas with same origin image drawn");
async_test(t => {
let image = document.createElementNS("http://www.w3.org/2000/svg", "image");
image.setAttribute("href", "http://{{hosts[][www]}}:{{ports[http][0]}}/images/green.png?pipe=header(Access-Control-Allow-Origin,*)");
image.crossOrigin = "anonymous";
image.onload = t.step_func_done(() => {
draw_and_read_image(image, false);
});
image.onerror = t.unreached_func();
}, "Can get pixels of canvas with CORS enabled cross origin image drawn");
async_test(t => {
let image = document.createElementNS("http://www.w3.org/2000/svg", "image");
image.setAttribute("href", "http://{{hosts[][www]}}:{{ports[http][0]}}/images/green.png?pipe=header(Access-Control-Allow-Origin,*)");
image.onload = t.step_func_done(() => {
draw_and_read_image(image, true);
});
image.onerror = t.unreached_func();
}, "Can't get pixels of canvas with CORS enabled cross origin image drawn from non-CORS element");
async_test(t => {
let image = document.createElementNS("http://www.w3.org/2000/svg", "image");
image.setAttribute("href", "http://{{hosts[][www]}}:{{ports[http][0]}}/images/green.png");
image.onload = t.step_func_done(() => {
draw_and_read_image(image, true);
});
image.onerror = t.unreached_func();
}, "Can't get pixels of canvas with non-CORS enabled cross origin image drawn");
</script>
</html>
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