diff --git content/browser/frame_host/navigation_handle_impl.cc content/browser/frame_host/navigation_handle_impl.cc
index 30536bd..6fdb9a3 100644
--- content/browser/frame_host/navigation_handle_impl.cc
+++ content/browser/frame_host/navigation_handle_impl.cc
@@ -223,12 +223,6 @@ net::Error NavigationHandleImpl::GetNetErrorCode() {
 }
 
 RenderFrameHostImpl* NavigationHandleImpl::GetRenderFrameHost() {
-  // TODO(mkwst): Change this to check against 'READY_TO_COMMIT' once
-  // ReadyToCommitNavigation is available whether or not PlzNavigate is
-  // enabled. https://crbug.com/621856
-  CHECK_GE(state_, WILL_PROCESS_RESPONSE)
-      << "This accessor should only be called after a response has been "
-         "delivered for processing.";
   return render_frame_host_;
 }
 
diff --git content/browser/frame_host/navigation_handle_impl.h content/browser/frame_host/navigation_handle_impl.h
index 19b6871..6e85c69 100644
--- content/browser/frame_host/navigation_handle_impl.h
+++ content/browser/frame_host/navigation_handle_impl.h
@@ -300,6 +300,8 @@ class CONTENT_EXPORT NavigationHandleImpl : public NavigationHandle {
     searchable_form_encoding_ = encoding;
   }
 
+  const std::vector<GURL>& redirect_chain() const { return redirect_chain_; }
+
  private:
   friend class NavigationHandleImplTest;
 
diff --git content/browser/frame_host/render_frame_host_impl.cc content/browser/frame_host/render_frame_host_impl.cc
index e496ce3..de019a8 100644
--- content/browser/frame_host/render_frame_host_impl.cc
+++ content/browser/frame_host/render_frame_host_impl.cc
@@ -1139,6 +1139,7 @@ void RenderFrameHostImpl::OnDidFailProvisionalLoadWithError(
   if (navigation_handle_) {
     navigation_handle_->set_net_error_code(
         static_cast<net::Error>(params.error_code));
+    navigation_handle_->set_render_frame_host(this);
   }
 
   frame_tree_node_->navigator()->DidFailProvisionalLoadWithError(this, params);