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我正在製作一個簡單的c#程序來確定服務器端壓縮是否可用/啓用在各種服務器上。這是我的請求代碼如下。爲什麼不能在我的c#HttpClient響應頭中看到Content-Encoding:gzip響應?
using (var client = new HttpClient())
{
client.Timeout = new TimeSpan(0, 0, 5);
client.DefaultRequestHeaders.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36");
client.DefaultRequestHeaders.Add("Accept-Encoding", "gzip, deflate, sdch, br");
var httpClientResponse = client.GetAsync(websiteURL).Result;
string header = httpClientResponse.Headers.GetValues("Content-Encoding").First();
}
我可以通過觀看該壓縮爲此請求啓用,但是我似乎無法提取代碼的響應報頭信息中小提琴手請求見。
這些是請求和響應的完整標頭。
GET https://www.dobbies.com/ HTTP/1.1
Accept: text/html, application/xhtml+xml, application/xml; q=0.9, image/webp, */*; q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.97 Safari/537.36
Accept-Encoding: gzip, deflate, sdch, br
Host: www.dobbies.com
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Content-Encoding: gzip
Vary: Accept-Encoding
Server:
Set-Cookie: ASP.NET_SessionId=hx1rb34ottgfritgt3rciql4; path=/; secure; HttpOnly
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000
X-Xss-Protection: 1; mode=block
Date: Fri, 07 Apr 2017 08:06:17 GMT
Content-Length: 16836
這是我所得到的,當我使用httpClientResponse.Headers
{
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000
X-Xss-Protection: 1; mode=block
Cache-Control: private
Date: Fri, 07 Apr 2017 08:06:17 GMT
Set-Cookie: ASP.NET_SessionId=hx1rb34ottgfritgt3rciql4; path=/; secure; HttpOnly
Server:
}
正如你所看到的內容編碼的頭:gzip的中缺少的響應。
爲什麼這個標題會丟失?與其他人一起。給我回我的頭!