最近在做一個WebAPI和Vue案子，本機除錯沒有問題，但釋出到IIS伺服器上，報錯返回405,500. 確認是在put請求時發生。度娘了很多文章沒有同時解決問題，後參考其它案子的寫法，在web.config內增加以下內容，即可解決。備份在此，以便後用。

<system.webServer>
    <modules>
      <remove name="WebDAVModule" />
    </modules>
    <handlers>
      <remove name="WebDAV" />
      <remove
 
 name="ExtensionlessUrlHandler-Integrated-4.0" />
      <remove name="OPTIONSVerbHandler" />
      <remove name="TRACEVerbHandler" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0"
 
 />
    </handlers>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="4294967295" />
        <verbs>
          <add verb="OPTIONS" allowed="true" />
        </verbs>
      </requestFiltering>
    </security>
    <httpProtocol
 
>
      <customHeaders>
        <add name="Access-Control-Allow-Origin" value="*" />
        <add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, Authorization" />
        <add name="Access-Control-Allow-Methods" value="GET, POST, PUT,PATCH, DELETE, OPTIONS" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>