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Many websites have customized their 404 pages with creative designs, messages, or features to entertain or assist their visitors. For example, Google's 404 page features a broken robot and a link to its homepage, while GitHub's 404 page shows a random image of a parallax star field and a link to its status page.
For example, the client uploads an image as image/svg+xml, but the server requires that images use a different format. 416 Range Not Satisfiable The client has asked for a portion of the file (byte serving), but the server cannot supply that portion. For example, if the client asked for a part of the file that lies beyond the end of the file.
HTTP message. The request/response message consists of the following: Request line, such as GET /logo.gif HTTP/1.1 or Status line, such as HTTP/1.1 200 OK, Headers. An empty line. Optional HTTP message body data. The request/status line and headers must all end with <CR><LF> (that is, a carriage return followed by a line feed ).
HTTP. HTTP header fields are a list of strings sent and received by both the client program and server on every HTTP request and response. These headers are usually invisible to the end-user and are only processed or logged by the server and client applications. They define how information sent/received through the connection are encoded (as in ...
Example 4: CACHE MANIFEST FALLBACK: / /offline.html NETWORK: … In Example 4, the fallback section consists of a single line. i.e., / /offline.html. The single character (/) before ‘offline’ will match any URL pattern on one's site. If the browser does not find the page in the appcache, the application will display the page /offline.html.
HTTP ( Hypertext Transfer Protocol) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. [1] HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for ...
Link rot (also called link death, link breaking, or reference rot) is the phenomenon of hyperlinks tending over time to cease to point to their originally targeted file, web page, or server due to that resource being relocated to a new address or becoming permanently unavailable. A link that no longer points to its target, often called a broken ...
This is a very brief history of web server programs, so some information necessarily overlaps with the histories of the web browsers, the World Wide Web and the Internet; therefore, for the sake of clarity and understandability, some key historical information below reported may be similar to that found also in one or more of the above-mentioned history articles.