update node-sass

build/dev-server.js

@@ -39,7 +39,7 @@ var context = config.dev.context
 switch(process.env.NODE_ENV){
     case 'local': var proxypath = 'http://localhost:8001'; break;
     case 'online': var proxypath = 'http://elm.cangdu.org'; break;
-    default:  var proxypath = config.dev.proxypath; 
+    default:  var proxypath = config.dev.proxypath;
 }
 var options = {
     target: proxypath,
@@ -75,4 +75,4 @@ module.exports = server.listen(port, function(err) {
     if (process.env.NODE_ENV !== 'testing') {
         opn(uri)
     }
-})
\ No newline at end of file
+})

package.json

@@ -44,7 +44,7 @@
     "less": "^2.7.1",
     "less-loader": "^2.2.3",
     "node-gyp": "^3.4.0",
-    "node-sass": "^4.5.0",
+    "node-sass": "^4.9.2",
     "opn": "^4.0.2",
     "ora": "^0.3.0",
     "sass": "^0.5.0",