ordering.html (883B)
1 <!doctype html> 2 <title>ResizeObserver and IntersectionObserver ordering</title> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <script> 6 async_test(function(t) { 7 let sawResize = false; 8 let sawIo = false; 9 let resizeObserver = new ResizeObserver(t.step_func(function() { 10 assert_false(sawIo, "ResizeObserver notification should be delivered before IntersectionObserver notification"); 11 sawResize = true; 12 resizeObserver.disconnect(); 13 })); 14 15 let io = new IntersectionObserver(t.step_func_done(function() { 16 assert_true(sawResize, "IntersectionObserver notification should be delivered after ResizeObserver notification"); 17 sawIo = true; 18 io.disconnect(); 19 })); 20 21 resizeObserver.observe(document.documentElement); 22 io.observe(document.documentElement); 23 }); 24 </script>