must revalidate

The cache of web pages is controlled by "cache-control" 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 review is divided into the following

Php forms are submitted and then rolled back. The content of the form is cleared by default (when session_start is used ), The solution is to write it after session_start () and before the character output Copy codeThe Code is as follows: header

The Cache of web pages is controlled by "cache-control" 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 review is divided into the following

This article is the HTTP Header page cache control and header commonly used instructions for a detailed analysis of the introduction, the need for friends to reference the The caching of the Web page is controlled by the "Cache-control" in the

PHP forms are backed up after submission, and the contents of the form are emptied by default (when using Session_Start), The workaround is to write the character output before the session_start () Copy Code code as follows: Header ("

The caching of the Web page is controlled by the "Cache-control" in the HTTP message header, the common value has private, No-cache, Max-age, must-revalidate, etc., the default is private. Its role is divided into the following situations according

cache| page when a WML page is downloaded to a WAP device, it is saved in the WAP device memory for a period of time until the time expires. After that, the page is downloaded from the server, not from the cache of the WAP device. This process is

Php Development Guide: cache details. We can use the header in the HTML page to control it by using the metatag and PHP programs. for example, the code is as follows header (Cache-Control: max-age86400, must-revalidate ); 24-hour header (Last-Mo, we

The cache of web pages is controlled by "cache-control" 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 review is divided into the following

HTML: META HTTP-EQUIV="pragma" CONTENT="no-cache"> META HTTP-EQUIV="Cache-Control" CONTENT="no-store, must-revalidate"> META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> META HTTP-EQUIV="expires" CONTENT="0"> ASP response.expires=0

1. About HTTP MessagesSee: http://www.runoob.com/http/http-messages.htmlThe request header in an HTTP message is the information the browser wants to tell the server, and the response header is the information the server wants to tell the client.

1. "Accept" field:The HTTP Header contains a series of important informationsuch as status code, response type, file encoding, etc...Alphabetical orderThe first HTTP Header is an acceptAccept is only present in requestThe meaning is: the type of

MVC CacheWhy does caching, caching really work?Let's say a scenario we have a home menu layout is basically not a change, if the dynamically generated Web pages are frequently requested and are built with a lot of system resources, how can we

Set static content cache time39 problems-client cache time can be set for infrequently changed static resources to reduce requestsFAILED-(max-age or expires not Set)-http://pic.111cn.net/h470.gifFAILED-(max-age or expires not

The cache of the Web page is controlled by the "Cache-control" in the HTTP message header, and the common values are private, No-cache, Max-age, must-revalidate, etc., and the default is private. Its function is divided into the following situations

One: Concept description Expries: Page cache expiration time, to the specified date page cache failure Last-modified: Latest update time for Web pages Cache-control Cache Control No-cache: Do not cache Web pages No-store: Do not cache Web pages, if

The caching of the Web page is controlled by the "Cache-control" in the HTTP message header, the common value has private, No-cache, Max-age, must-revalidate, etc., the default is private. Its role is divided into the following situations according

Brief introductionCookies are a very important thing in a user session, and an authenticated cookie is the equivalent of a password. Protecting these authenticated cookies is a very important topic. In this article, we will demonstrate how to

Request Headers:Is that I visited a URL: a header of http://www.hzau.edu.cn , According to the concrete example to analyze the function of each part and its function. AcceptRole: The type of media that can be accepted by the browser side ,For

Night around 23 o'clock received a large number of monitoring alarm, the company website directly can not access, immediately log on to the server, directly top see the situation as follows:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/5