http-headers

问题 How do I get a WCF client to process server responses which have been GZipped or Deflated by IIS? On IIS, I've followed the instructions here on how to make IIS 6 gzip all responses (where the request contained "Accept-Encoding: gzip, deflate") emitted by .svc wcf services. On the client, I've followed the instructions here and here on how to inject this header into the web request: "Accept-Encoding: gzip, deflate". Fiddler2 shows the response is binary and not plain old Xml. The client

问题 When I visit chesseng.herokuapp.com I get a response header that looks like Cache-Control:private Connection:keep-alive Content-Encoding:gzip Content-Type:text/css Date:Tue, 16 Oct 2012 06:37:53 GMT Last-Modified:Tue, 16 Oct 2012 03:13:38 GMT Status:200 OK transfer-encoding:chunked Vary:Accept-Encoding X-Rack-Cache:miss and then I refresh the page and get Cache-Control:private Connection:keep-alive Date:Tue, 16 Oct 2012 06:20:49 GMT Status:304 Not Modified X-Rack-Cache:miss so it seems like

问题 Is it ever meaningful whether the order of headers is A: 1 B: 2 vs B:2 A:1 I'm trying to figure out if I can use a dictionary to store a list of headers or if it needs to be some kind of list or ordered dictionary. 回答1: No, it does not matter for headers with different names. See RFC 2616, section 4.2: The order in which header fields with differing field names are received is not significant. However, it is "good practice" to send general-header fields first, followed by request-header or

问题 I have seen the HTTP headers of Content-Language and Accept-Language , could someone explain what these are for and the difference between them? I have a multilingual site and wondering should I be setting both to the sites current selected language, by the user. 回答1: Content-Language , an entity header, is used to describe the language(s) intended for the audience, so that it allows a user to differentiate according to the users' own preferred language. Entity headers are used in both, HTTP

问题 What HTTP response headers are required to be sent from server to the client? I working to optimize the HTTP response headers to minimize the HTTP response overhead. I know "overhead" is somewhat exaggerated, but I like a clean output. I see a lot of websites, which sends redundant cache headers. e.g. It is redundant to specify both Expires and Cache-Control: max-age , or to specify both Last-Modified and ETag . Source HTTP/1.1: Header Field Definitions 回答1: It depends on what you define as

问题 I have written an axios POST request as recommended from the npm package documentation like: var data = { 'key1': 'val1', 'key2': 'val2' } axios.post(Helper.getUserAPI(), data) .then((response) => { dispatch({type: FOUND_USER, data: response.data[0]}) }) .catch((error) => { dispatch({type: ERROR_FINDING_USER}) }) And it works, but now I have modified my backend API to accept headers. Content-Type: 'application/json' Authorization: 'JWT fefege...' Now, this request works fine on Postman, but

问题 I'm attempting to access a web service with Prototype/AJAX and am running into an error I can't figure out: it seems that when I make a request to a server my request is interpreted as an OPTIONS rather than a GET request (and in turn throws a 501 - not implemented error since the server only allows GET requests, based on what I understand from Access-Control-Request-Method: ). Am I missing something in my AJAX/request formulation that may be causing this error? I've read a bit into CORS

问题 I am trying to upload a file and return a json response regarding properties(name, size etc) of the file. It works fine in all browsers except IE. IE tries to download the JSON as a file ! I have IE10 and testing it on IE7 to 10 by changing browser mode and document mode from the debugger. I am using asp.net mvc4, the file upload action have HttpPost attribute and i am returning json response using return Json(myObject); And here are my http headers Request Key Value Request POST /File

问题 I need to send "500 Internal Server Error" from an PHP script under certain conditions. The script is supposed to be called by a third party app. The script contains a couple of die("this happend") statements for which I need to send the 500 Internal Server Error response code instead of the usual 200 OK . The third party script will re-send the request under certain conditions which include not receiving the 200 OK response code. Second part of the question: I need to setup my script like

问题 I am building a login application in android in which i am hitting a url(with username and password) upto that part it works fine but after that whenever I am hitting a url(once the user is authenticated) , it return nothing(i.e. a error message like please login first). However it works fine in very similar iphone app and on browser. I got somewhere that it is the error of phpSessionId(i.e. the session is destroyed for further request) and If we want our Android application to stay