diff --git a/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc b/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
index 5c00e3e935b2..43f882eb0883 100644
--- a/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
+++ b/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
@@ -171,11 +171,11 @@ void LocalWindowProxy::Initialize() {
                  GetFrame()->IsMainFrame());
     MainThreadDebugger::Instance()->ContextCreated(script_state_.get(),
                                                    GetFrame(), origin);
+
+    InstallConditionalFeatures();
     GetFrame()->Client()->DidCreateScriptContext(context, world_->GetWorldId());
   }
 
-  InstallConditionalFeatures();
-
   if (World().IsMainWorld()) {
     GetFrame()->Loader().DispatchDidClearWindowObjectInMainWorld();
   }