diff --git a/tools/domprops.json b/tools/domprops.json
index 1045429d..74020102 100644
--- a/tools/domprops.json
+++ b/tools/domprops.json
@@ -4323,6 +4323,7 @@
     "enable",
     "enableBackground",
     "enableDelegations",
+    "enableHighAccuracy",
     "enableStyleSheetsForSet",
     "enableVertexAttribArray",
     "enabled",
@@ -5553,6 +5554,7 @@
     "maxWidth",
     "maxZoom",
     "maximize",
+    "maximumAge",
     "maximumFractionDigits",
     "measure",
     "measureText",