C++ LANGUAGE HTTP HEADER

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C++ LANGUAGE HTTP HEADER

HTTP Header 


The line Content-type:text/html\r\n\r\n is a part of HTTP header, 
which is sent to the browser to understand the content. All the 
HTTP header will be in the following form: 


HTTP Field Name: Field Content 
  
For Example 
Content-type: text/html\r\n\r\n 
There are few other important HTTP headers, which you will use 
frequently in your CGI Programming. 


Header           Description 

Content-type:  A MIME string defining the format of the file 
                being returned. Example is Content-type:text/html. 

Expires: Date  The date the information becomes invalid. This 
                should be used by the browser to decide when a 
                page needs to be refreshed. A valid date string 
                should be in the format 01 Jan 1998 12:00:00 GMT.
 
Location: URL  The URL that should be returned instead of the URL 
                requested. You can use this field to redirect a 
                request to any file. 

Last-modified: Date  The date of last modification of the resource. 
Content-length: N  The length, in bytes, of the data being returned. 
                        The browser uses this value to report the estimated 
                        download time for a file. Set the cookie passed through the string.