chromium/third_party/blink/web_tests/editing/pasteboard/resources/copy-backslash-euc.html

<!DOCTYPE html>
<html>

<head>
<meta charset="EUC-JP">
</head>

<body>

<h2>Original texts which will be copied</h2>
<div id="div">\ from EUC page</div>
<div id="transform" style="text-transform:uppercase">\ from EUC page (transformed)</div>
<div id="secure" style="-webkit-text-security:disc">\ from EUC page (secure)</div>
<input id="control" value="\ from EUC text control">

<h2>Texts in the UTF8 frame will be pasted here</h2>
<div id="pasteboard"></div>

</body>

</html>