http 1 1 304 not modified

Analyze the HTTP request and return the status code 304. The request returns the status code 304. Hello everyone, today I will share with you a status code of 304. You may see it intentionally or unintentionally when you open chrome tools or

First, the HTTP status Code 304 understanding1, if the client in the request for a file, found itself cached files have last Modified, then in the request will contain if Modified Since, this time is the cache file of the last Modified. Therefore,

HTTP status Code 200 and 304 HTTP status code are three-bit numeric codes that represent the response status of a Web server. By using these numbers, you can simplify the expression of the state. There are dozens of status codes, of which the first

HTTP 400-invalid requestHTTP 401.1-unauthorized: Logon FailedHTTP 401.2-unauthorized: logon fails due to server configuration problemsHTTP 401.3-ACL prohibit Resource AccessHTTP 401.4-unauthorized: Authorization denied by filterHTTP

Hello everyone, today to share a status code 304, you may have been in the previous development of chrome tools or Firebug tool to intentionally or inadvertently see it.HTTP 304:not ModifiedThe standard explanation is that the not Modified client

Basic knowledge 　　 1) What is "last-modified"?When the browser requests a URL for the first time, the server-side return status is 200, the content is the resource you requested, and there is a last-modified attribute that marks the last time the

1) What is "last-modified"?When the browser requests a URL for the first time, the server-side return status is 200, the content is the resource you requested, and there is a last-modified attribute that marks the last time the file was modified at

There are many kinds of caches: Server cache, third-party cache, browser cache, and so on. The browser cache is the least expensive, because the browser cache relies on the client and consumes little server-side resources.Making the browser cache

Basic knowledge1) What is "Last-Modified "?When the browser requests a URL for the first time, the server returns 200, and the content is the resource you requested, at the same time, there is a Last-Modified attribute to mark the Last modification

Basic knowledge1) What is "last-modified "?When the browser requests a URL for the first time, the server returns 200, and the content is the resource you requested, at the same time, there is a last-modified attribute to mark the last modification