Meta refresh

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Meta refresh is a method of instructing a web browser to automatically refresh the current web page after a given time interval, using an HTML meta element with the http-equiv parameter set to "refresh" and a content parameter giving the time interval in seconds. It is also possible to instruct the browser to fetch a different URL when the page is refreshed, by including the alternative URL in the content parameter. By setting the refresh time interval to zero (or a very low value), this allows meta refresh to be used as a method of URL redirection.

[edit] Usability

Use of meta refresh is discouraged by the W3C, since unexpected refresh can disorient users[1]. Meta refresh also impairs the web browser's "back" button in some browsers (including Internet Explorer 6 and before), although most modern browsers compensate for this (Mozilla Firefox, Opera, Internet Explorer 7).

Alternatives to meta refresh include JavaScript, or HTTP redirection headers such as HTTP 301.

[edit] Examples

Refresh page after 5 seconds:

<meta http-equiv="refresh" content="5" />

Redirect to after 5 seconds:

<meta http-equiv="refresh" content="5;url=" />

Redirect to immediately:

<meta http-equiv="refresh" content="0;url=" />

[edit] References

  1. ^ [1]
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