diff --git a/testing/web-platform/tests/html/interaction/focus/setSequentialFocusStartingPoint.tentative.html b/testing/web-platform/tests/html/interaction/focus/setSequentialFocusStartingPoint.tentative.html
new file mode 100644
index 000000000000..790647b01e17
--- /dev/null
+++ b/testing/web-platform/tests/html/interaction/focus/setSequentialFocusStartingPoint.tentative.html
@@ -0,0 +1,276 @@
+<
+!
+DOCTYPE
+html
+>
+<
+link
+rel
+=
+author
+href
+=
+"
+mailto
+:
+jarhar
+chromium
+.
+org
+"
+>
+<
+link
+rel
+=
+help
+href
+=
+"
+https
+:
+/
+/
+github
+.
+com
+/
+whatwg
+/
+html
+/
+issues
+/
+5326
+"
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testharness
+.
+js
+"
+>
+<
+/
+script
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testharnessreport
+.
+js
+"
+>
+<
+/
+script
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testdriver
+.
+js
+"
+>
+<
+/
+script
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testdriver
+-
+vendor
+.
+js
+"
+>
+<
+/
+script
+>
+<
+button
+id
+=
+b1
+>
+b1
+<
+/
+button
+>
+<
+div
+id
+=
+d1
+>
+d1
+<
+/
+div
+>
+<
+button
+id
+=
+b2
+>
+b2
+<
+/
+button
+>
+<
+script
+>
+const
+tabKey
+=
+'
+\
+uE004
+'
+;
+promise_test
+(
+async
+(
+)
+=
+>
+{
+assert_equals
+(
+document
+.
+activeElement
+document
+.
+body
+'
+Focus
+should
+initially
+be
+set
+on
+the
+body
+element
+.
+'
+)
+;
+document
+.
+setSequentialFocusStartingPoint
+(
+d1
+)
+;
+assert_equals
+(
+document
+.
+activeElement
+document
+.
+body
+'
+Calling
+setSequentialFocusStartingPoint
+should
+not
+change
+the
+focused
+element
+.
+'
+)
+;
+await
+test_driver
+.
+send_keys
+(
+document
+.
+activeElement
+tabKey
+)
+;
+assert_equals
+(
+document
+.
+activeElement
+b2
+'
+Pressing
+tab
+should
+focus
+the
+next
+button
+after
+the
+sequential
+focus
+starting
+point
+.
+'
+)
+;
+}
+'
+document
+.
+setSequentialFocusStartingPoint
+should
+set
+the
+sequential
+focus
+starting
+point
+on
+any
+element
+.
+'
+)
+;
+<
+/
+script
+>