Merge pull request '增加 index不缓存，解决更新后客户端缓存导致页面一直白屏' (#1) from dev_csw into master

Reviewed-on: http://121.41.2.71:3000/wyw/mh_jy_safe_web/pulls/1

public/web.config

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <location path="index.html">
+        <system.webServer>
+            <httpProtocol>
+                <customHeaders>
+                    <add name="Cache-Control" value="no-cache, no-store, must-revalidate" />
+                </customHeaders>
+            </httpProtocol>
+        </system.webServer>
+    </location>
+</configuration>