1 files changed, 6 insertions, 1 deletions
diff --git a/components/script/dom/domstringmap.rs b/components/script/dom/domstringmap.rs
index fdaf9d7f65c..7d3683f74db 100644
--- a/components/script/dom/domstringmap.rs
+++ b/components/script/dom/domstringmap.rs
@@ -67,5 +67,10 @@ impl<'a> DOMStringMapMethods for &'a DOMStringMap {
             }
         }
     }
-}
 
+    // https://html.spec.whatwg.org/multipage/#domstringmap
+    fn SupportedPropertyNames(self) -> Vec<DOMString> {
+        // FIXME: unimplemented (https://github.com/servo/servo/issues/7273)
+        vec![]
+    }
+}