2 files changed, 7 insertions, 12 deletions
diff --git a/core/es_isolate.rs b/core/es_isolate.rs
index e0e414bc9..bc412c7b2 100644
--- a/core/es_isolate.rs
+++ b/core/es_isolate.rs
@@ -315,19 +315,14 @@ impl EsIsolate {
     let mut resolver = resolver_handle.get(scope).unwrap();
     resolver_handle.reset(scope);
 
-    let exception = match ErrBox::downcast::<ErrWithV8Handle>(err) {
-      Ok(mut err) => {
-        let handle = err.get_handle();
-        let exception = handle.get(scope).unwrap();
-        handle.reset(scope);
-        exception
-      }
-      Err(err) => {
+    let exception = err
+      .downcast_ref::<ErrWithV8Handle>()
+      .and_then(|err| err.get_handle().get(scope))
+      .unwrap_or_else(|| {
         let message = err.to_string();
         let message = v8::String::new(scope, &message).unwrap();
         v8::Exception::type_error(scope, message)
-      }
-    };
+      });
 
     resolver.reject(context, exception).unwrap();
     scope.isolate().run_microtasks();
diff --git a/core/isolate.rs b/core/isolate.rs
index 8bdd017a8..a9e5f44a5 100644
--- a/core/isolate.rs
+++ b/core/isolate.rs
@@ -1164,8 +1164,8 @@ impl ErrWithV8Handle {
     Self { err, handle }
   }
 
-  pub fn get_handle(&mut self) -> &mut v8::Global<v8::Value> {
-    &mut self.handle
+  pub fn get_handle(&self) -> &v8::Global<v8::Value> {
+    &self.handle
   }
 }