http-headers

问题 I know http headers order is not significant (or at least, should not be) for the web servers to handle requests. However, I’m wondering how it is likely for servers (especially reverse-proxies or CDN) to check the headers position to legitimate a request. Let me explain. When I do a simple http request with firefox, these are my headers: GET / HTTP/1.1 Host: stackoverflow.com User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:39.0) Gecko/20100101 Firefox/39.0 Accept: text/html,application/xhtml+xml

问题 Im currently polling data with from an Database with an regular interval. For the backend I'm using C# and MVC2 as framework. As I'm fetching data with an interval of 10 seconds now I would like to in the backend in my controller implement some kind of conditional that will parse the http header and not fetch the data again if it has not been modified since last fetch. I'm not really sure how I would go about with this. Anyone have any good suggestions?! Regards 回答1: Why mess around with http

问题 Im currently polling data with from an Database with an regular interval. For the backend I'm using C# and MVC2 as framework. As I'm fetching data with an interval of 10 seconds now I would like to in the backend in my controller implement some kind of conditional that will parse the http header and not fetch the data again if it has not been modified since last fetch. I'm not really sure how I would go about with this. Anyone have any good suggestions?! Regards 回答1: Why mess around with http

问题 Im currently polling data with from an Database with an regular interval. For the backend I'm using C# and MVC2 as framework. As I'm fetching data with an interval of 10 seconds now I would like to in the backend in my controller implement some kind of conditional that will parse the http header and not fetch the data again if it has not been modified since last fetch. I'm not really sure how I would go about with this. Anyone have any good suggestions?! Regards 回答1: Why mess around with http

问题 My Rails 3.2 app uses — via #stale? — If-Modified-Since HTTP header in the request and Last-Modified header in the response to decide whether it should generate some data dynamically. This works extremely well in development (whether using webrick or unicorn_rails) as curl -D headers.txt shows that if the correct If-Modified-Since value is provided a 304 response is sent, while the Last-Modified header is otherwise sent along the request data. Unfortunately once deployed behind nginx, neither

问题 Before you start telling me there are already 10000000 posts on this error, I know. I am working on a wordpress plugin and am recieving the following error when submitting my edit pages: Warning: Cannot modify header information - headers already sent by (output started at ***\wp-content\plugins\***\meta-class-load.php:1067) in ***\wp-includes\pluggable.php on line 934 What's different about this error is the line it references does not interface with the header, nor output content before. I

问题 I am implementing a fix for the problem caused by 02 compression issues over 3G. Web site exhibits JavaScript error on iPad / iPhone under 3G but not under WiFi The best solution seems to be http://stuartroebuck.blogspot.com/2010/08/official-way-to-bypassing-data.html which is basically to add the header Cache-Control: no-transform in IIS, however I would like to apply this only to specific file types. What is the easiest way to do this? 回答1: It is the best solution for me to write a

问题 I've tracked down a bug between two pieces of software, one of them is emitting the header Content-Type: application/x-bittorrent; charset=utf-8 And the other is handling this incorrectly, but handles it correctly if the charset parameter is dropped. I need to know which software to write a patch for! According to the W3C's website: Documents transmitted with HTTP that are of type text, such as text/html, text/plain, etc., can send a charset parameter in the HTTP header to specify the

问题 I noticed that chrome cached a video file. I replaced it with another one on the server and chrome kept serving the old one from cache (using JW flash player 5) The headers of the request look like this: joe@joe-desktop:~$ wget -O - -S --spider http://www.2xfun.de/files_geheimhihi14/20759.mp4 Spider mode enabled. Check if remote file exists. --2011-05-15 22:40:56-- http://www.2xfun.de/files_geheimhihi14/20759.mp4 Resolving www.2xfun.de... 213.239.214.112 Connecting to www.2xfun.de|213.239.214

问题 In my Django Application's views.py , I return an HttpResponse object after attempting to set the following HTTP Header fields: # Create a Response Object with the content to return response = HttpResponse("%s"%(output_display),mimetype='text/html') response['Cache-Control'] = 'must-revalidate, max-age=20' response['Vary'] = 'Accept-Encoding' response['Transfer-Encoding'] = 'gzip' #response['Content-Encoding'] = 'gzip' response['Connection'] = 'close' #response['Content-Type'] = 'text/html'