Fix #2561

* remove comment out code

src/server/views/widget/headers/drawio.html

@@ -6,7 +6,6 @@
   let origin = url.origin;
   window.DRAWIO_BASE_URL = origin;
   window.DRAWIO_LIGHTBOX_URL = origin;
-  // window.urlParams = { 'lightbox' : '1' }
   window.STENCIL_PATH = [origin, 'stencils'].join('/');
   window.SHAPES_PATH = [origin, 'shapes'].join('/');
   window.mxBasePath = [origin, 'mxgraph'].join('/');