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<!DOCTYPE html>
<script>
onload=function(){
var img = new Image();
img.src = "http://example.com/tests/dom/serviceworkers/test/fetch/hsts/image-20px.png";
img.onload = function() {
window.parent.postMessage({status: "image", data: img.width}, "*");
};
img.onerror = function() {
window.parent.postMessage({status: "image", data: "error"}, "*");
};
};
</script>
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