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The birth of a cookie
Because the HTTP protocol is stateless, the server-side business must be stateful. The original purpose of cookies was to store state information in the Web to facilitate server-side use. For example, to determine whether the
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Cookie Creation
Because HTTP is stateless, services on the server must be stateful. The initial purpose of Cookie creation is to store the status information on the web for
original articles, reproduced please specify: reproduced from the electric Shang Sharong ec-shalom.com, specialized in electric business.The concept of caching has not been clear, resulting in the use of PHP write cache is also very not
There are several existing standards that are required to store large amounts of data in a user's Web browser, each with its own advantages, short board, unique standardization status, and browser support levels. However, the actual performance of
There are several existing standards that are required to store large amounts of data in a user's Web browser, each with its own advantages, short board, unique standardization status, and browser support levels. However, the actual performance of
IE browser1. IE6Right-click the IE icon on the desktop, and then click internet properties on the pop-up page. Then, click delete cookies and delete files and press OK to wait for a while.2. IE7, 8, and 9 (this article uses IE8 as an example)Open IE
How does the browser clear the cache? With the upgrading of the browser, the small partners may not find or do not know, today to introduce some of the mainstream browser clear caching methods, I hope to be a little help for everyone's daily life.
First, Cookie1. HTTP Headers and CookiesA cookie is a short name for an HTTP cookie. This standard requires:(1) The HTTP response header of the server contains the Set-cookie fieldResponse head Eg:HTTP/1.1 200 OKContent-Type: text/htmlSet-Cookie:
http://segmentfault.com/a/1190000000683599Original addressHere I assume that you are using chrome, if you do web development, or if you are more curious about the rendering of web pages and like to toss, then you must know the developer tools of
Analysis of browser cache mechanismNon-HTTP Cache Mechanism
The browser Cache mechanism is mainly the Cache mechanism defined by the HTTP protocol (such as Expires and Cache-control ). However, there is also a non-HTTP cache mechanism. For example,
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