<!DOCTYPE html>
<html>
<head>
<style>
@font-face {
    font-family: "WebFont";
    src: url("resources/Ahem-nbsp-no-space.ttf") format("truetype");
}
@font-face {
    font-family: "WebFont2";
    src: url("resources/Ahem-visible-tab-and-space.ttf") format("truetype");
}
</style>
</head>
<body>
This test makes sure that the nbsp glyph is used in a font if the space glyph is unavailable. The test passes if this text you're reading right now is the only text on the page.
<div style="font: 48px 'WebFont';">&nbsp;</div>
<div style="font: 48px 'WebFont2'; white-space: pre;">&#x9;</div>
</body>
</html>