diff --git a/css/properties/background-repeat-x.json b/css/properties/background-repeat-x.json
index f7497a1426d909..101b4c4f7f6ee7 100644
--- a/css/properties/background-repeat-x.json
+++ b/css/properties/background-repeat-x.json
@@ -19,7 +19,10 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "5"
+              "version_added": "5",
+              "version_removed": "15",
+              "partial_implementation": true,
+              "notes": "`CSS.supports('background-repeat-x')` returns `true`, but the property has no effect."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",
diff --git a/css/properties/background-repeat-y.json b/css/properties/background-repeat-y.json
index 7f167fbaa17020..5768bc2d46fe47 100644
--- a/css/properties/background-repeat-y.json
+++ b/css/properties/background-repeat-y.json
@@ -19,7 +19,10 @@
             "opera": "mirror",
             "opera_android": "mirror",
             "safari": {
-              "version_added": "5"
+              "version_added": "5",
+              "version_removed": "15",
+              "partial_implementation": true,
+              "notes": "`CSS.supports('background-repeat-y')` returns `true`, but the property has no effect."
             },
             "safari_ios": "mirror",
             "samsunginternet_android": "mirror",