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<!DOCTYPE>
<head>
<style>
body {
border: 0px;
margin: 0px;
padding: 0px;
}
img {
border: 50px solid black;
margin: 50px;
padding: 50px;
}
</style>
</head>
<body>
<!-- This is deliberately an image with a non-neutral inherent orientation to
ensure that the inherent orientation is irrelevant. -->
<img src="image-exif-90-deg-flip.jpg">
<script>
var orientationInfo = location.search.substring(1).split("&");
var angle = orientationInfo[0];
var flip = orientationInfo[1] == "flip" ? true : false;
// Construct a style.
var style = "img { image-orientation: "
+ angle + "deg"
+ (flip ? " flip" : "")
+ "; }\n";
// Apply the style to the document.
var sheet = document.createElement('style');
sheet.innerHTML = style;
document.body.appendChild(sheet);
</script>
</body>
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