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HTTP. In HTTP, " Referer " (a misspelling of Referrer [1]) is an optional HTTP header field that identifies the address of the web page (i.e., the URI or IRI ), from which the resource has been requested. By checking the referrer, the server providing the new web page can see where the request originated. In the most common situation, this ...
H:PREVIEW. Below the edit box is a "Show preview" button. Pressing this will show you what the article will look like without actually implementing your edits (i.e. publishing your changes online.) It is strongly recommended that you use this before hitting "Publish changes", which will cause your edits to be published onto the page and made ...
The same is usually true even for programmers writing CGI scripts, though some servers allow scripts to add custom headers (e.g. by enabling "non-parsed-headers"). Many web servers will generate a 3xx status code if a script outputs a "Location:" header line. For example, in PHP, one can use the "header" function:
The HTTP Location header field is returned in responses from an HTTP server under two circumstances: To ask a web browser to load a different web page ( URL redirection ). In this circumstance, the Location header should be sent with an HTTP status code of 3xx. It is passed as part of the response by a web server when the requested URI has:
In Internet Explorer Print Preview, one can adjust the paper size to print on, margins, and page orientation of the Web page. Mozilla Firefox has Print Preview built in as well. Safari lets users preview the web page when Print is clicked. In Print, the Preview button opens the Preview application and the print preview of the web page shows up.
Opera also released a preview build that was showcased the same day, and a manifesto that called for video to become a first-class citizen of the web. <video> element examples. The following HTML code fragment will embed a WebM video into a web page.
The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted. See the ISO 3166-3 standard for former country codes.
This help page is a . The markup language called wikitext, also known as wiki markup or wikicode, consists of the syntax and keywords used by the MediaWiki software to format a page. (Note the lowercase spelling of these terms. [a]) To learn how to see this hypertext markup, and to save an edit, see Help:Editing.