| Index: Source/modules/serviceworkers/FetchEvent.idl | 
| diff --git a/Source/modules/serviceworkers/FetchEvent.idl b/Source/modules/serviceworkers/FetchEvent.idl | 
| index a36aa1b6e967f8e86fa421449a90e1f76abfc7f4..7bfad142cc721198c093a1fed54b6cc38ba8c641 100644 | 
| --- a/Source/modules/serviceworkers/FetchEvent.idl | 
| +++ b/Source/modules/serviceworkers/FetchEvent.idl | 
| @@ -8,5 +8,5 @@ | 
| ] interface FetchEvent : Event { | 
| readonly attribute Request request; | 
|  | 
| -    void respondWith(any value); | 
| +    [CallWith=ScriptState] void respondWith(any value); | 
| }; | 
|  |