1 files changed, 4 insertions, 4 deletions
diff --git a/components/script/dom/webidls/TestBinding.webidl b/components/script/dom/webidls/TestBinding.webidl
index b07fe213cdd..0621be01858 100644
--- a/components/script/dom/webidls/TestBinding.webidl
+++ b/components/script/dom/webidls/TestBinding.webidl
@@ -86,13 +86,13 @@ dictionary TestDictionaryDefaults {
   object? nullableObjectValue = null;
 };
 
-[Constructor,
- Constructor(sequence<unrestricted double> numberSequence),
- Constructor(unrestricted double num),
- Pref="dom.testbinding.enabled",
+[Pref="dom.testbinding.enabled",
  Exposed=(Window,Worker)
 ]
 interface TestBinding {
+           [Throws] constructor();
+           [Throws] constructor(sequence<unrestricted double> numberSequence);
+           [Throws] constructor(unrestricted double num);
            attribute boolean booleanAttribute;
            attribute byte byteAttribute;
            attribute octet octetAttribute;