diff --git a/browser/net/brave_proxying_url_loader_factory.cc b/browser/net/brave_proxying_url_loader_factory.cc
index 4ab2943a62d..497ff71465b 100644
--- a/browser/net/brave_proxying_url_loader_factory.cc
+++ b/browser/net/brave_proxying_url_loader_factory.cc
@@ -221,9 +221,11 @@ void BraveProxyingURLLoaderFactory::InProgressRequest::OnReceiveEarlyHints(
 
 void BraveProxyingURLLoaderFactory::InProgressRequest::OnReceiveResponse(
     network::mojom::URLResponseHeadPtr head,
-    mojo::ScopedDataPipeConsumerHandle body) {
+    mojo::ScopedDataPipeConsumerHandle body,
+    absl::optional<mojo_base::BigBuffer> cached_metadata) {
   current_response_head_ = std::move(head);
   current_response_body_ = std::move(body);
+  cached_metadata_ = std::move(cached_metadata);
   ctx_->internal_redirect = false;
   HandleResponseOrRedirectHeaders(
       base::BindRepeating(&InProgressRequest::ContinueToResponseStarted,
@@ -249,11 +251,6 @@ void BraveProxyingURLLoaderFactory::InProgressRequest::OnUploadProgress(
                                    std::move(callback));
 }
 
-void BraveProxyingURLLoaderFactory::InProgressRequest::OnReceiveCachedMetadata(
-    mojo_base::BigBuffer data) {
-  target_client_->OnReceiveCachedMetadata(std::move(data));
-}
-
 void BraveProxyingURLLoaderFactory::InProgressRequest::OnTransferSizeUpdated(
     int32_t transfer_size_diff) {
   target_client_->OnTransferSizeUpdated(transfer_size_diff);
@@ -367,7 +364,8 @@ void BraveProxyingURLLoaderFactory::InProgressRequest::
     }
 
     // Craft the response.
-    target_client_->OnReceiveResponse(std::move(response), std::move(consumer));
+    target_client_->OnReceiveResponse(std::move(response), std::move(consumer),
+                                      std::move(cached_metadata_));
 
     auto write_data = std::make_unique<WriteData>();
     write_data->client = weak_factory_.GetWeakPtr();
@@ -527,7 +525,8 @@ void BraveProxyingURLLoaderFactory::InProgressRequest::
 
   proxied_client_receiver_.Resume();
   target_client_->OnReceiveResponse(std::move(current_response_head_),
-                                    std::move(current_response_body_));
+                                    std::move(current_response_body_),
+                                    std::move(cached_metadata_));
 }
 
 void BraveProxyingURLLoaderFactory::InProgressRequest::ContinueToBeforeRedirect(
diff --git a/browser/net/brave_proxying_url_loader_factory.h b/browser/net/brave_proxying_url_loader_factory.h
index 35e8b9d6da2..ecae516560c 100644
--- a/browser/net/brave_proxying_url_loader_factory.h
+++ b/browser/net/brave_proxying_url_loader_factory.h
@@ -85,15 +85,16 @@ class BraveProxyingURLLoaderFactory
     // network::mojom::URLLoaderClient:
     void OnReceiveEarlyHints(
         network::mojom::EarlyHintsPtr early_hints) override;
-    void OnReceiveResponse(network::mojom::URLResponseHeadPtr response_head,
-                           mojo::ScopedDataPipeConsumerHandle body) override;
+    void OnReceiveResponse(
+        network::mojom::URLResponseHeadPtr response_head,
+        mojo::ScopedDataPipeConsumerHandle body,
+        absl::optional<mojo_base::BigBuffer> cached_metadata) override;
     void OnReceiveRedirect(
         const net::RedirectInfo& redirect_info,
         network::mojom::URLResponseHeadPtr response_head) override;
     void OnUploadProgress(int64_t current_position,
                           int64_t total_size,
                           OnUploadProgressCallback callback) override;
-    void OnReceiveCachedMetadata(mojo_base::BigBuffer data) override;
     void OnTransferSizeUpdated(int32_t transfer_size_diff) override;
     void OnComplete(const network::URLLoaderCompletionStatus& status) override;
 
@@ -147,6 +148,7 @@ class BraveProxyingURLLoaderFactory
     // ExtensionWebRequestEventRouter) through much of the request's lifetime.
     // That code supports both Network Service and non-Network Service behavior,
     // which is why this weirdness exists here.
+    absl::optional<mojo_base::BigBuffer> cached_metadata_;
     network::mojom::URLResponseHeadPtr current_response_head_;
     mojo::ScopedDataPipeConsumerHandle current_response_body_;
     scoped_refptr<net::HttpResponseHeaders> override_headers_;
diff --git a/chromium_src/chrome/browser/ui/views/location_bar/location_bar_view_browsertest.cc b/chromium_src/chrome/browser/ui/views/location_bar/location_bar_view_browsertest.cc
index 547c6e15509..ad4fdf7e1eb 100644
--- a/chromium_src/chrome/browser/ui/views/location_bar/location_bar_view_browsertest.cc
+++ b/chromium_src/chrome/browser/ui/views/location_bar/location_bar_view_browsertest.cc
@@ -77,7 +77,8 @@ class SecurityIndicatorTest
     mojo::CreateDataPipe(nullptr, producer_handle, consumer_handle);
 
     params->client->OnReceiveResponse(std::move(resource_response),
-                                      std::move(consumer_handle));
+                                      std::move(consumer_handle),
+                                      absl::nullopt);
 
     network::URLLoaderCompletionStatus completion_status;
     completion_status.ssl_info = ssl_info;
diff --git a/components/body_sniffer/body_sniffer_url_loader.cc b/components/body_sniffer/body_sniffer_url_loader.cc
index 92ea7a70742..762d8e5e3fd 100644
--- a/components/body_sniffer/body_sniffer_url_loader.cc
+++ b/components/body_sniffer/body_sniffer_url_loader.cc
@@ -66,7 +66,8 @@ void BodySnifferURLLoader::OnReceiveEarlyHints(
 
 void BodySnifferURLLoader::OnReceiveResponse(
     network::mojom::URLResponseHeadPtr response_head,
-    mojo::ScopedDataPipeConsumerHandle body) {
+    mojo::ScopedDataPipeConsumerHandle body,
+    absl::optional<mojo_base::BigBuffer> cached_metadata) {
   // OnReceiveResponse() shouldn't be called because BodySnifferURLLoader is
   // created by WillProcessResponse(), which is equivalent
   // to OnReceiveResponse().
@@ -90,10 +91,6 @@ void BodySnifferURLLoader::OnUploadProgress(
                                                    std::move(ack_callback));
 }
 
-void BodySnifferURLLoader::OnReceiveCachedMetadata(mojo_base::BigBuffer data) {
-  destination_url_loader_client_->OnReceiveCachedMetadata(std::move(data));
-}
-
 void BodySnifferURLLoader::OnTransferSizeUpdated(int32_t transfer_size_diff) {
   destination_url_loader_client_->OnTransferSizeUpdated(transfer_size_diff);
 }
diff --git a/components/body_sniffer/body_sniffer_url_loader.h b/components/body_sniffer/body_sniffer_url_loader.h
index b984a4e342d..a0756efd2fe 100644
--- a/components/body_sniffer/body_sniffer_url_loader.h
+++ b/components/body_sniffer/body_sniffer_url_loader.h
@@ -68,15 +68,16 @@ class BodySnifferURLLoader : public network::mojom::URLLoaderClient,
   // network::mojom::URLLoaderClient implementation (called from the source of
   // the response):
   void OnReceiveEarlyHints(network::mojom::EarlyHintsPtr early_hints) override;
-  void OnReceiveResponse(network::mojom::URLResponseHeadPtr response_head,
-                         mojo::ScopedDataPipeConsumerHandle body) override;
+  void OnReceiveResponse(
+      network::mojom::URLResponseHeadPtr response_head,
+      mojo::ScopedDataPipeConsumerHandle body,
+      absl::optional<mojo_base::BigBuffer> cached_metadata) override;
   void OnReceiveRedirect(
       const net::RedirectInfo& redirect_info,
       network::mojom::URLResponseHeadPtr response_head) override;
   void OnUploadProgress(int64_t current_position,
                         int64_t total_size,
                         OnUploadProgressCallback ack_callback) override;
-  void OnReceiveCachedMetadata(mojo_base::BigBuffer data) override;
   void OnTransferSizeUpdated(int32_t transfer_size_diff) override;
   void OnComplete(const network::URLLoaderCompletionStatus& status) override;