Load controls css preemptively.

It seems that the css will not load dynamically like the controls javascript.
jupyter-widgets · Nov 7, 2017 · c906cf9 · c906cf9
1 parent 0c5f96c
commit c906cf9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/packages/jupyterlab-manager/src/plugin.ts b/packages/jupyterlab-manager/src/plugin.ts
@@ -39,7 +39,7 @@ import {
 } from '@jupyter-widgets/controls/lib/version';
 
 import '@jupyter-widgets/base/css/index.css';
-
+import '@jupyter-widgets/controls/css/widgets-base.css';
 
 const WIDGET_MIMETYPE = 'application/vnd.jupyter.widget-view+json';
 
@@ -114,7 +114,7 @@ function activateWidgetExtension(app: JupyterLab): base.IJupyterWidgetRegistry {
     version: JUPYTER_CONTROLS_VERSION,
     exports: () => {
       return new Promise((resolve, reject) => {
-        (require as any).ensure(['@jupyter-widgets/controls', '@jupyter-widgets/controls/css/widgets-base.css'], (require: NodeRequire) => {
+        (require as any).ensure(['@jupyter-widgets/controls'], (require: NodeRequire) => {
           resolve(require('@jupyter-widgets/controls'));
         },
         (err: any) => {