diff --git a/v3/pkg/application/webview_window_windows.go b/v3/pkg/application/webview_window_windows.go
index 34507973e..04eed5e44 100644
--- a/v3/pkg/application/webview_window_windows.go
+++ b/v3/pkg/application/webview_window_windows.go
@@ -1032,6 +1032,7 @@ func (w *windowsWebviewWindow) processRequest(req *edge.ICoreWebView2WebResource
 		useragent, _ := reqHeaders.GetHeader(assetserver.HeaderUserAgent)
 		useragent = strings.Join([]string{useragent, assetserver.WailsUserAgentValue}, " ")
 		reqHeaders.SetHeader(assetserver.HeaderUserAgent, useragent)
+		reqHeaders.SetHeader(webViewRequestHeaderWindowId, strconv.FormatUint(uint64(w.parent.id), 10))
 		reqHeaders.Release()
 	}