http-headers

问题 I am compressing html files with gzip. The browser (FF 3.0.10) does not decompress or display index.html.gz (pre-compressed on the server) when I request index.html Where can I confirm the zipped header "content-encoding" and the browsers "Accept-Encoding"? (I am using the zlib API in C for zipping) Thanks. 回答1: if the browser sends Accept-Encoding: gzip you can compress the content of your http response, not the file on the server's file system. Then in your HTTP response you must set these

问题 Why would you set ETags to a "MUST requirement level"? You obtains the resource before the ETags returned... I'm working on a project where I am the client that sends HTTP requests to a server that returns an HTTP Cache-Control header with ETags to cache response (where in each addition request it gets compared to the If-None-Match header to determine if the data is stale and if a new request should be made). In my current project the ETags parameter is using the conditional GET architecture

问题 I'm trying to fetch a PDF file from: URL : https://domain_name/xyz/_id/download/ wherein it doesn't points to a direct pdf file and each unique file gets downloaded interpreting a particular <_id> field. I put this link in the address bar of the browser and Pdf file gets downloaded instantly, while when I try to fetch it by HTTPsURLConnection its Content-Type is in 'text/html' form, while it should be in 'application/pdf'. I also tried to 'setRequestProperty' to 'application/pdf' before

问题 (How) can I archieve that scrapy only downloads the header data of a website (for check purposes etc.) I've tried to disable some download-middlewares but it doesn't seem to work. 回答1: Like @alexce said, you can issue HEAD Requests instead of the default GET: Request(url, method="HEAD") UPDATE: If you want to use HEAD requests for your start_urls you will need to override the make_requests_from_url method: def make_requests_from_url(self, url): return Request(url, method='HEAD', dont_filter

问题 How can we remove the server header response in IIS 8.0/8.5? My current server report: Microsoft-IIS/8.0 Microsoft-IIS/8.5 For IIS 7.0 I used the URLScan 3.1 however this is only supported for IIS 7.0 and not 8.x 回答1: There is another solution and in my opinion this solution is the best and safe. You can use UrlRewrite module created by the Microsoft. The Url Rewrite module redirects your url and can also change your IIS server name in the response header. You don't have to use redirect

问题 I understand that 'a' server response to posting an enclosed entity where a new resource is created could be a 'created' plus a location header and a url. That is my normal modus operandi. However I just wrote some server code that, in addition to accepting a single enclosed thing and creating a new resource, also accepts a batch of stuff as an entity and creates multiple resources from it. As an example, consider /cars. You might post a single new car to make /cars/toyota-camry, or you might

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: “Warning: Headers already sent” in PHP When I create my php files with utf-8 bom, the header() function doesn't work because the bom chars are sent before the http headers. Does it mean that we shouldn't use bom in php source files? Is it a feature or bug? And what are your advices when working with utf-8 encoded php source files? 回答1: The BOM is useless in UTF-8. It's neither. PHP is working as intended. Your

问题 Just starting to play with jQuery and jQuery mobile to be exact. I've written a login script in PHP that once the user has successfully logged in runs the following: header("Location: index.php"); What I want the application to do is redirect the user to th em When that runs though, I get the following error: Warning: Cannot modify header information - headers already sent by (output started at /Applications/MAMP/htdocs/app/login.php:22) in /Applications/MAMP/htdocs/app/login.php on line 138

问题 $url_in = 'http://vk.com/video_ext.php?oid=3145131&id=159485516&hash=d821df23b7dc0b54&hd=1'; function curl($url, $cookie = false, $post = false, $header = false, $follow_location = false) { $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_FAILONERROR, true); curl_setopt($ch, CURLOPT_HEADER, $header); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $follow_location); if ($cookie) { curl_setopt ($ch, CURLOPT_COOKIE, $cookie); } if ($post) { curl_setopt(

问题 In a socket programming, I must display multiple Content-Types. ex) Content-Type : text/html, text/css, text/javascript, image/png However, this code doesn't work. How can I display multiple Content-Type in a HTTP response message? Thank you... 回答1: Content-Type means should be only one type based on the requester's Accept parameter of a default content type you may specify, however if your client is interested in a specific type, it should send the type he wants in Accept request header and