diff --git content/browser/renderer_host/ipc_utils.cc content/browser/renderer_host/ipc_utils.cc
index 5cb6e6463767d..84a9de1dfc6f0 100644
--- content/browser/renderer_host/ipc_utils.cc
+++ content/browser/renderer_host/ipc_utils.cc
@@ -73,7 +73,7 @@ bool VerifyInitiatorOrigin(
           navigation_url_key,
           navigation_url->DeprecatedGetOriginAsURL().spec());
     }
-    if (initiator_frame_token) {
+    if (initiator_frame_token && initiator_frame_token->has_value()) {
       if (RenderFrameHostImpl* initiator_render_frame_host =
               RenderFrameHostImpl::FromFrameToken(
                   process_id, initiator_frame_token->value())) {
diff --git content/browser/renderer_host/render_frame_host_impl.cc content/browser/renderer_host/render_frame_host_impl.cc
index fe69db83393ef..839f002fef986 100644
--- content/browser/renderer_host/render_frame_host_impl.cc
+++ content/browser/renderer_host/render_frame_host_impl.cc
@@ -10210,6 +10210,7 @@ void RenderFrameHostImpl::CommitNavigation(
   auto browser_calc_origin_to_commit =
       navigation_request->GetOriginToCommitWithDebugInfo();
   if (!process_lock.is_error_page() && !is_mhtml_subframe &&
+      common_params->url.IsStandard() &&
       !policy->CanAccessDataForOrigin(
           GetProcess()->GetID(), browser_calc_origin_to_commit.first.value())) {
     SCOPED_CRASH_KEY_STRING64("CommitNavigation", "lock_url",