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+<!DOCTYPE html>
+<html lang="en" class="reftest-wait">
+<head>
+ <meta charset="UTF-8">
+ <title>Bug 1288255 - Wrong line breaking due to cached hyphen width</title>
+ <style id="font" media="not all">
+ @font-face {
+ font-family: LongHyphenTest;
+ src: url(LongHyphenTest.woff2);
+ }
+ </style>
+ <style>
+ #test {
+ font: 16px/2 LongHyphenTest;
+ width: 14em;
+ border: 1px solid blue;
+ }
+ </style>
+</head>
+<body onload="load_font()">
+ <p>Test passes if there are two lines each has three rectangles:</p>
+ <div id="test">
+ <span>XXX XXX</span> XXX X&shy;XX XXX XXX
+ </div>
+ <script>
+ function load_font() {
+ document.getElementById("font").media = "";
+ document.fonts.load("16px LongHyphenTest").then(() => {
+ document.documentElement.className = "";
+ });
+ }
+ </script>
+</body>
+</html>