将项目移动到生产服务器后,我发现静态文件(如图像)不会返回状态为"304 not modified",尽管有"Last-Modified"和"Expires"等缓存标题.
请求标题
Accept:image/webp,image/*,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch
Accept-Language:ru-RU,ru;q=0.8,en-US;q=0.6,en;q=0.4,uk;q=0.2
Cache-Control:max-age=0
Connection:keep-alive
Cookie:_LANG=ru
DNT:1
Host:test.com
If-Modified-Since:Mon, 07 Sep 2015 08:46:37 GMT
If-None-Match:"1D0E949B4DCD480"
Referer:http://test.com/ru/Some/Index/
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36
响应标头
HTTP/1.1 200 OK
Cache-Control: public
Content-Type: image/png
Expires: Tue, 08 Sep 2015 14:33:06 GMT
Last-Modified: Mon, 07 Sep 2015 08:46:37 GMT
Accept-Ranges: bytes
ETag: "1D0E949B4DCD480"
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Mon, 07 Sep 2015 14:33:06 GMT
Content-Length: 5953
在本地"IIS快递"一切正常.
本地响应标头
HTTP/1.1 304 Not Modified …