1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-snap-2/scroll-start-target/scroll-start-target-with-hash-fragment-navigation.tentative.html b/testing/web-platform/tests/css/css-scroll-snap-2/scroll-start-target/scroll-start-target-with-hash-fragment-navigation.tentative.html
new file mode 100644
index 0000000000..2d291c2ef9
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+++ b/testing/web-platform/tests/css/css-scroll-snap-2/scroll-start-target/scroll-start-target-with-hash-fragment-navigation.tentative.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <meta charset="utf-8">
+  <title> CSS Scroll Snap 2 Test: scroll-start-target interaction with fragment-navigation</title>
+  <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-2/#scroll-start-target">
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+</head>
+
+<body>
+  <iframe id="frame" src="scroll-start-target-with-fragment-navigation-inner-frame.html#fragment_target"
+    onload="runTest()"></iframe>
+  <script>
+    function runTest() {
+      test((t) => {
+        let scroller = frame.contentDocument.scrollingElement;
+        // fragment_target is at the bottom of the frame so the frame should be
+        // fully scrolled down to bring it into view (despite middle_box being
+        // the scroll-start-target).
+        let expected_scroll_top = scroller.scrollHeight - scroller.clientHeight;
+        // The scroll-start-target is just below top_box which has a height of
+        // 60vh.
+        const scroll_start_target_top = 0.6 * frame.contentWindow.innerHeight;
+
+        assert_equals(frame.contentWindow.location.hash, "#fragment_target");
+        assert_not_equals(scroll_start_target_top, expected_scroll_top);
+        assert_equals(frame.contentDocument.scrollingElement.scrollTop,
+          expected_scroll_top);
+      }, "scroll-start-target does not override hash fragment navigation");
+    }
+  </script>
+</body>
+\ No newline at end of file