diff --git a/resize-observer-1/Overview.bs b/resize-observer-1/Overview.bs index 5566e51c535d..d74390330734 100644 --- a/resize-observer-1/Overview.bs +++ b/resize-observer-1/Overview.bs @@ -169,6 +169,7 @@ and thus is typically more expensive to observe than the other sizes. 
     dictionary ResizeObserverOptions {
         ResizeObserverBoxOptions box = "content-box";
+        boolean fireOnEveryPaint = false;
     };