diff --git a/feature-group-definitions/popover.yml b/feature-group-definitions/popover.yml
new file mode 100644
index 0000000000..3bf468ffaa
--- /dev/null
+++ b/feature-group-definitions/popover.yml
@@ -0,0 +1 @@
+spec: https://html.spec.whatwg.org/multipage/#the-popover-attribute