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-rw-r--r--testing/web-platform/tests/intersection-observer/not-in-containing-block-chain.tentative.html25
1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/intersection-observer/not-in-containing-block-chain.tentative.html b/testing/web-platform/tests/intersection-observer/not-in-containing-block-chain.tentative.html
new file mode 100644
index 0000000000..4490d0b631
--- /dev/null
+++ b/testing/web-platform/tests/intersection-observer/not-in-containing-block-chain.tentative.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<meta name="viewport" content="width=device-width,initial-scale=1">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://github.com/w3c/IntersectionObserver/issues/457">
+<style>
+ div {
+ width: 100px;
+ height: 100px;
+ background: blue;
+ margin: 10px
+ }
+</style>
+<div id="target"></div>
+<div id="root"></div>
+<script>
+let t = async_test("IntersectionObserver reports a (non-intersecting) entry even if not in the containing block chain");
+new IntersectionObserver(
+ t.step_func_done(function(records) {
+ assert_equals(records.length, 1);
+ assert_false(records[0].isIntersecting);
+ }),
+ { root: document.querySelector("#root") }
+).observe(document.querySelector("#target"));
+</script>