From d3025e559f3ab675f254c8f7038a188f4e99307d Mon Sep 17 00:00:00 2001
From: kazuki sako <everykz@yahoo.co.jp>
Date: Thu, 17 May 2018 23:18:07 +0900
Subject: [PATCH] fix: missing css source map at dev environment (#460)

---
 lib/webpack/createBaseConfig.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/webpack/createBaseConfig.js b/lib/webpack/createBaseConfig.js
index 7328c61654..736a75cf3f 100644
--- a/lib/webpack/createBaseConfig.js
+++ b/lib/webpack/createBaseConfig.js
@@ -197,7 +197,8 @@ module.exports = function createBaseConfig ({
         .options({
           modules,
           localIdentName: `[local]_[hash:base64:8]`,
-          importLoaders: 1
+          importLoaders: 1,
+          sourceMap: !isProd
         })
 
       rule.use('postcss-loader').loader('postcss-loader').options(Object.assign({