[typed-om] Make the fallback argument nullable so it's easier to dupl…

…icate. Fixes #665.
w3c · Feb 21, 2018 · c9d9c29 · c9d9c29
1 parent 2a4b8b9
commit c9d9c29
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/css-typed-om/Overview.bs b/css-typed-om/Overview.bs
@@ -622,7 +622,7 @@ interface CSSUnparsedValue : CSSStyleValue {
 typedef (DOMString or CSSVariableReferenceValue) CSSUnparsedSegment;
 
 [Exposed=(Window, Worker, PaintWorklet, LayoutWorklet),
- Constructor(DOMString variable, optional CSSUnparsedValue fallback)]
+ Constructor(DOMString variable, optional CSSUnparsedValue? fallback)]
 interface CSSVariableReferenceValue {
     attribute DOMString variable;
     readonly attribute CSSUnparsedValue? fallback;