显示HTTP状态码和HEAD信息↓
HTTP/1.1 404 Not Found
Cache-Control: private
Content-Length: 1847
Content-Type: text/html; charset=utf-8
OutputCached: False
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Security-Policy: script-src 'self' 'unsafe-inline' 'unsafe-eval' blob: *.map.baidu.com *.bdimg.com bdimg.share.baidu.com answer.eol.cn res.wx.qq.com pucha.kaipuyun.cn dcs.conac.cn webservice.coolwei.com www.gov.cn; object-src 'self'
X-Permitted-Cross-Domain-Policies: master-only
X-Download-Options: HTTP/1.1 404 Not Found
Content-Length: 2425