http-headers

问题 I am trying to learn some basics about HTTP. I've inspected a some HTTP response headers and noticed 2 things that confused me: There was no cache-control header and ETag header was present. The way I understood ETag is that, client sends ETag in a requests to a cache, and cache revalidates resources Etag with the server. But if there is no Cache-Control header in response, than all subsequent requests do the revalidation directly with the server and completely omit cache. Is this the case or

问题 I'm trying to set up server push with cloudflare, but they require multiple link header fields to push multiple files. However, I can't find any documented way to include multiple header fields with the same key in node.js. I tried providing an array, but that just concatenates them together as the value for a single header field. 回答1: express You pass an array of values to res.header('HeaderName', arrayOfValues) . Here's a working example and cURL output showing the duplicate response

问题 While studying the HTTP protocol, I saw this in a response header field: x-ec-custom-error: 1 I was using netcat to get example.com's main page through a proxy connection. Here is all console comunication where this header appears: $ nc -x (omitted proxy address):3128 -Xconnect www.example.com 80 GET http://www.example.com/ HTTP/1.1 Host: www.example.com HTTP/1.1 200 OK Accept-Ranges: bytes Cache-Control: max-age=604800 Content-Type: text/html Date: Fri, 07 Mar 2014 20:08:45 GMT Etag:

问题 I'm having a hard time connecting the last dots building a role based access control api in Express. Following this tutorial and implementing onto my existing program, but I think I am missing the last step and after countless tutorials analysis paralysis has set in. I have since scaled back all my necessary code to what I think is the bare minimum. Currently I am able to create a new user and save them to the mongoose database. I can see the hash by bcrypt is doing its thing and I can see

问题 If a webpage is retrieved from a website in the Local intranet zone, IE7 mode is used. -MSDN So that's what happening with us. Client has set the option to "open intranet sites in compatibility mode". So at their place our application loads in IE7 mode. Is there any way by which I can detect whether the client is running his IE in compatible mode? As far as I know if the browser is in compatible mode then it sends IE7 user-agent string to Apache. So I can get that document mode is IE7, but I

问题 I am new to SSl/TLS protocols.I have back-end(API) wich is TLSv1.2 enabled. What I want to do is set the tls version for each and every request of my front-end(Angular) application.I want to prove that my application capable of sending TLSv1.2 request.Is there any way to set TLS version in angular web api request.Then i can change the TLS version and prove that. This is how consume web API. public methodName(): Observable<any[]> { return this.http .get<any>(`${config.apiUrl}url`) .pipe( map

问题 I try to get a client port for some security purpose. The Remote Port is change for each and every DynamoHttpServlet Request and Response. I need a constant Remote port look like session. When user enter into the site that time Remote port was generated but this generated port destroy only when user leave the site until i need the same port in each and every request. Is there any possibilities ? 来源： https://stackoverflow.com/questions/64641731/how-to-get-a-user-clinet-remote-port-in-java

问题 How can I retrieve CloudFront-Forwarded-Proto using PHP? It appears as a header in the AWS documentation: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/RequestAndResponseBehaviorCustomOrigin.html#RequestCustomRemovedHeaders I tried using $_SERVER['CLOUDFRONT_FORWARDED_PROTO'] or $_SERVER['HTTP_CLOUDFRONT_FORWARDED_PROTO'] , among others, but without success. How can I do it? What am I missing? I can't find any information or examples on this at all. 回答1: Have you

问题 The following curl command: curl -v -F 'json={"method":"update_video","params":{"video":{"id":"582984001","itemState":"INACTIVE"},"token":"jCoXH5OAMYQtXm1sg62KAF3ysG90YLagEECDAdlhg.."}}' https://api.somewebservice.com/services/post Produces this output: {"method":"update_video","params":{"video":{"id":"55269001","itemState":"INACTIVE"},"token":"jCoXH1sg62KAF3ysG90YLagEECTP16uOUSg_fDAdlhg.."}}' https://api.somewebservice.com/services/post * Trying 64.74.101.65... * Connected to api

问题 I feel like this should be easy. I have an app where all I am trying to do is have a form page (index.jsp) that calls a servlet (CheckInfo.java) which sets a new header (myHeader) and redirects the user to another page (redirect.jsp). All of these files are on the same server. The index.jsp is sending the request just fine and CheckInfo is processing and redirecting, but myHeader is not showing up on redirect.jsp. I've read several posts talking about response.sendRedirect sends a 302 which