IIS7.5 POST request JSON file failed

In the IIS7.5 through the POST request JSON file failed, but if you are using the GET, request success.
The following is the Web.config configuration.
      <mimeMap fileExtension=".json" mimeType="text/json" />
      <add name="json" path="*.json" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\System32\inetsrv\asp.dll" resourceType="Unspecified" requireAccess="Script" preCondition="bitness64" />

Here in the browser, the request

Started by Bing at November 08, 2016 - 11:54 PM

I was in accordance with the post practice doing,
Results no

Posted by Frederica at November 19, 2016 - 12:13 AM

No one ah~~~~~

Posted by Bing at November 20, 2016 - 12:20 AM