test_bug1399605.html (867B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>Test for Bug 1399605</title> 6 <script src="/tests/SimpleTest/SimpleTest.js"></script> 7 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> 8 </head> 9 <body> 10 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1399605">Mozilla Bug 1399605</a> 11 <p id="display"></p> 12 <div id="content"> 13 <div id="target"></div> 14 </div> 15 <pre id="test"> 16 <script type="application/javascript"> 17 18 let observer = new IntersectionObserver(function() { 19 ok(true, "we are still observing"); 20 SimpleTest.finish(); 21 observer.unobserve(document.getElementById('target')); 22 }); 23 observer.observe(document.getElementById('target')); 24 observer.unobserve(document.getElementById('content')); 25 SimpleTest.waitForExplicitFinish(); 26 27 </script> 28 </pre> 29 <div id="log"> 30 </div> 31 </body> 32 </html>