| Index: third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html
|
| diff --git a/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html b/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..bf1d2f4c191b7ab79d97ec5cca95c7a7b2161826
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/intersection-observer/zero-area-element-hidden.html
|
| @@ -0,0 +1,24 @@
|
| +<!DOCTYPE html>
|
| +<script src="../resources/intersection-observer-helper-functions.js"></script>
|
| +<script src="../resources/testharness.js"></script>
|
| +<script src="../resources/testharnessreport.js"></script>
|
| +
|
| +<title>Ensure that a hidden zero-area element is treated correctly</title>
|
| +
|
| +<div id='target' style='width: 0px; height: 0px; position: fixed; top: -1000px'</div>"
|
| +
|
| +<script>
|
| +'use strict';
|
| +
|
| +async_test(t => {
|
| + let target = document.getElementById('target');
|
| + let entries = [];
|
| + new IntersectionObserver(changes => {
|
| + entries.push(...changes);
|
| + }).observe(target);
|
| + waitForNotification(t.step_func_done(() => {
|
| + // Since the element is initially assumed to be hidden, there are no entries.
|
| + assert_equals(entries.length, 0);
|
| + }));
|
| +});
|
| +</script>
|
|
|