2 files changed, 4 insertions, 0 deletions
diff --git a/components/script/dom/testbinding.rs b/components/script/dom/testbinding.rs
index bbbbc8aa5d6..8cd53ee57fb 100644
--- a/components/script/dom/testbinding.rs
+++ b/components/script/dom/testbinding.rs
@@ -580,6 +580,8 @@ impl TestBindingMethods for TestBinding {
             ptr::write_volatile(p, 0xbaadc0de);
         }
     }
+
+    fn Panic(&self) { panic!("explicit panic from script") }
 }
 
 impl TestBinding {
diff --git a/components/script/dom/webidls/TestBinding.webidl b/components/script/dom/webidls/TestBinding.webidl
index eb6e5a9ae7b..29b5d9e1d71 100644
--- a/components/script/dom/webidls/TestBinding.webidl
+++ b/components/script/dom/webidls/TestBinding.webidl
@@ -455,6 +455,8 @@ interface TestBinding {
   static void funcControlledStaticMethodEnabled();
   [Func="TestBinding::condition_satisfied"]
   const unsigned short funcControlledConstEnabled = 0;
+
+  void panic();
 };
 
 partial interface TestBinding {