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<submit> — a button that tells the browser to take action on the form (typically to send it to a server) <textarea> — much like the <text> input field except a <textarea> allows for multiple rows of data to be shown and entered <select> — a drop-down list that displays a list of items a user can select from
Diagram of a double POST problem encountered in user agents. Diagram of the double POST problem above being solved by PRG. Post/Redirect/Get (PRG) is a web development design pattern that lets the page shown after a form submission be reloaded, shared, or bookmarked without ill effects, such as submitting the form another time.
Starting with HTML 4.0, forms can also submit data in multipart/form-data as defined in RFC 2388 (See also RFC 1867 for an earlier experimental version defined as an extension to HTML 2.0 and mentioned in HTML 3.2). The special case of a POST to the same page that the form belongs to is known as a postback.
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The redirect is better in a case like this than a direct link like [[dog|poodle]], because when an actual poodle article is eventually created (replacing the redirect), readers following the poodle link are taken there automatically without anyone needing to review all the links to dog to see which ones should actually go to poodle.
Make sure that there is no text before the #REDIRECT keyword, or the redirect will not work. There is not usually any reason to place any text after the link either, although sometimes categories (or categorizing templates—see Categorizing redirects), interwiki links (see Interlanguage links) or HTML comments (<!-- comment -->) are added.
If the Find ahead button is checked, the text will be searched for and selected while you type into this field (case insensitive and non-regular expression search). If this field is empty, the find buttons searches for the selected text or the word under the cursor. The Clear find button can be used to empty this field.
An HTTP response with this status code will additionally provide a URL in the header field Location. This is an invitation to the user agent (e.g. a web browser) to make a second, otherwise identical, request to the new URL specified in the location field. The end result is a redirection to the new URL.