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chromium
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chromium/third_party/blink/web_tests/mhtml/page_with_image_unmht-expected.html 

<html><head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">

<title>Page with square</title>
</head><body>
This is a red square:<br>
<img src="resources/red_square.png">
</body></html>