原因在于iis不支持.json擴展名,官方教程地址https://ckeditor.com/docs/ckfinder/ckfinder3-php/quickstart.html#quickstart_troubleshooting_json
You will thus need to?add JSON as a new MIME type?in your IIS configuration.
Set the following options in the?Add MIME Type?dialog:
- File name extension:?.json.
- MIME type:?application/json.