diff --git a/content/browser/image_capture/image_capture_impl.cc b/content/browser/image_capture/image_capture_impl.cc
index 044e864cfed7d..c2d3df43f694e 100644
--- a/content/browser/image_capture/image_capture_impl.cc
+++ b/content/browser/image_capture/image_capture_impl.cc
@@ -116,6 +116,19 @@ void ImageCaptureImpl::SetPhotoOptions(const std::string& source_id,
                        "ImageCaptureImpl::SetPhotoOptions",
                        TRACE_EVENT_SCOPE_PROCESS);
 
+  // POC DIAGNOSTIC ONLY -- not part of the attack. Logs the browser-process
+  // view of frame visibility to prove the browser KNOWS the page is hidden but
+  // still forwards PTZ because there is no visibility check below.
+  if (settings->has_pan || settings->has_tilt || settings->has_zoom) {
+    LOG(ERROR) << "[POC-BROWSER] ImageCaptureImpl::SetPhotoOptions PTZ request "
+               << "pan=" << settings->pan << " tilt=" << settings->tilt
+               << " zoom=" << settings->zoom
+               << " ; render_frame_host().GetVisibilityState()="
+               << static_cast<int>(render_frame_host().GetVisibilityState())
+               << " (0=kVisible 1=kHidden 2=kHiddenButPainting)"
+               << " ; HasPanTiltZoomPermissionGranted()="
+               << HasPanTiltZoomPermissionGranted();
+  }
   if ((settings->has_pan || settings->has_tilt || settings->has_zoom) &&
       !HasPanTiltZoomPermissionGranted()) {
     std::move(callback).Run(false);