pragma no cache

: This article describes how to set an http packet header using the phphpheader function. if you are interested in the PHP Tutorial, refer to it. // Define the encoding headers ('content-Type: text/html; charset = utf-8 '); // Atomheader

This article mainly introduces the Pyspider to the crawler to forge a random request head of the example, has a certain reference value, now share to everyone, the need for friends can refer to Pyspider uses the Tornado Library to do HTTP requests,

1. Add in the header of the ASP page The following is a reference clip:Response. Buffer = trueResponse. expiresabsolute = now ()-1Response. expires = 0Response. cachecontrol = "no-Cache"Response. addheader "Pragma", "No-Cache"

Understanding OAuth 2.0 and oauth2.0Understanding OAuth 2.0 Author: Ruan Yifeng Date: January 1, May 12, 2014 OAuth is an open network standard for authorization. It is widely used all over the world. The current version is version 2.0. This article

InHeader ("Cache-control: private"); the webpage Cache is controlled by the PHP Cache controller in the HTTP message header, common values include private, no-cache, max-age, and must-revalidate. The default value is private. The function of browser

IOS uses Ajax to synchronize asynchronous interactions with JavaScriptImplementation principle:1.Ajax可以实现同步与异步请求2.UIWebView可以实现Ajax跨域请求3.NSURLProtocol可以拦截Ajax请求4.NSURLProtocol可以实现模拟响应结果Issues that need to be

JSP page cache and Clear cache I. Overview The idea of caching can be applied at all levels of software layering. It is an internal mechanism that is not perceptible to the outside world. The database itself is cached, and persistent layers can be

Browser Cache Insider and solution In the following three different scenarios, browsers have different caching conditions: 1). The servlet does not overwrite the Getlastmodified method, there is no LastModified header field in the response message,

I. Overview The idea of caching can be applied at all levels of software layering. It is an internal mechanism that is not perceptible to the outside world. The database itself has a cache, and the persistence layer can also be cached. (For example:

Dynamic | caching | disabling | static | page 1, in the ASP page header JoinResponse.Buffer = TrueResponse.ExpiresAbsolute = Now ()-1Response.Expires = 0Response.CacheControl = "No-cache"Response.AddHeader "Pragma", "No-cache"2, in the HTML code to

Caching | tips | disabling | pages 1. On ASP page Header add      response.buffer   =   true     response.expiresabsolute   =   Now ()   -   1     response.expires   =   0     response.cachecontrol   =   "No-cache"      response.addheader   "

In-depth understanding of browser cache principles and browser cache The browser cache stores files on the client. A good cache policy can reduce the usage of network bandwidth, increase the access speed, improve the user experience, and reduce the

I. OverviewThe idea of caching can be applied at all levels of software layering. It is an internal mechanism that is not perceptible to the outside world.The database itself is cached, and persistent layers can be cached. (e.g. hibernate, 1-and

Php session Principle Session is a way to maintain user session data on the server side. The corresponding cookie is to maintain user data on the client side. HTTP is a stateless protocol. After the server responds, it loses its connection with the

[Php]Function downloadFile ($ fullPath ){ // Must be fresh startIf (headers_sent () // check if any header has been sentDie ('headers sent'); // Equivalent to exit () // Required for some browsersIf (ini_get ('zlib. output_compression ') // Gets the

In a password-protected Web application, it is not only necessary to call the invalidate () method of HttpSession to correctly handle the user exit process. Now most browsers have buttons for moving back and forward, allowing users to move back or

Understanding OAuth 2.0 and oauth2.0  OAuth is an open network standard for authorization. It is widely used all over the world. The current version is version 2.0. This article provides a concise and plain explanation of the OAuth 2.0 design

The following describes several php implementation programs used to generate EXCEL documents. For more information, see. Original StyleOriginal method: Send the header, and send the header of the attachment to the user's browser to indicate that the

Mod_expires installation and configuration to increase website rateImplementing this method will save you incredible amounts of bandwidth and greatly speed up your site for visitors to your site. Basically, for images, CSS, JavaScript and other

1. all people who have done Socket programming in the HTTP request type know that when we design a communication protocol, the "message header Message Body" segmentation method is very common, the message header tells the other party what the