rel-prerender - Revision history

Plehegar: Fixed wording

2013-11-15T03:55:20Z

Fixed wording

← Older revision		Revision as of 03:55, 15 November 2013
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	The prerender keyword indicates that preemptively fetching and loading the specified resource in a hidden top-level browsing context is likely to be beneficial, as it is highly likely that the user will navigate to this resource. If the resource is [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate navigated] to, the user agent may replace the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] with the one it loaded the specified resource in. If the user agent performs such a replacement, it should preserve the replaced browsing context's session history in such a manner that it is indistinguishable from the case where the navigation happens without replacement.		The prerender keyword indicates that preemptively fetching and loading the specified resource in a hidden top-level browsing context is likely to be beneficial, as it is highly likely that the user will navigate to this resource. If the resource is [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate navigated] to, the user agent may replace the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] with the one it loaded the specified resource in. If the user agent performs such a replacement, it should preserve the replaced browsing context's session history in such a manner that it is indistinguishable from the case where the navigation happens without replacement.

	If the user chooses to navigate to this resource, the user agent may the to the specified resource.		If the user chooses to navigate to this resource, the user agent may [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate navigate] the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] to the specified resource.

	The user agent may discard the browsing context corresponding to the prerendered resource if any of the following is true:		The user agent may discard the browsing context corresponding to the prerendered resource if any of the following is true:

Plh: Arvind change: http://lists.w3.org/Archives/Public/public-web-perf/2013Jul/0033.html

2013-07-30T15:08:51Z

Arvind change: http://lists.w3.org/Archives/Public/public-web-perf/2013Jul/0033.html

← Older revision		Revision as of 15:08, 30 July 2013
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	The prerender keyword may be used with a link, a, and area elements. This keyword creates an external resource link.		The prerender keyword may be used with a link, a, and area elements. This keyword creates an external resource link.

	The prerender keyword indicates that preemptively fetching and loading the specified resource in a hidden top-level browsing context is likely to be beneficial, as it is highly likely that the user will navigate to this resource. If the ~~user chooses to navigate to this~~ resource~~, the user agent may~~ [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate ~~navigate~~] the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] to the specified resource.		The prerender keyword indicates that preemptively fetching and loading the specified resource in a hidden top-level browsing context is likely to be beneficial, as it is highly likely that the user will navigate to this resource. If the resource is [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate navigated] to, the user agent may replace the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] with the one it loaded the specified resource in. If the user agent performs such a replacement, it should preserve the replaced browsing context's session history in such a manner that it is indistinguishable from the case where the navigation happens without replacement.

			If the user chooses to navigate to this resource, the user agent may the to the specified resource.

	The user agent may discard the browsing context corresponding to the prerendered resource if any of the following is true:		The user agent may discard the browsing context corresponding to the prerendered resource if any of the following is true:

Plh: Initial version using Arvind and Jatinder text

2013-07-30T14:37:46Z

Initial version using Arvind and Jatinder text

New page

= Link type "prerender" =

The prerender keyword may be used with a link, a, and area elements. This keyword creates an external resource link.

The prerender keyword indicates that preemptively fetching and loading the specified resource in a hidden top-level browsing context is likely to be beneficial, as it is highly likely that the user will navigate to this resource. If the user chooses to navigate to this resource, the user agent may [http://www.w3.org/html/wg/drafts/html/master/browsers.html#navigate navigate] the [http://www.w3.org/html/wg/drafts/html/master/browsers.html#browsing-context current browsing context] to the specified resource.

The user agent may discard the browsing context corresponding to the prerendered resource if any of the following is true:

* If the resource is not navigated to within a reasonable amount of time.
* If the user navigates to some other resource from the current browsing context.
* If the link element is removed from the document.
* There is no default type for resources given by the prerender keyword.

== Example ==

<pre>
<link rel="prerender" href="http://www.example.org/survey/question-2">
</pre>

== See also ==

* [http://w3c-test.org/webperf/specs/PageVisibility/#dom-document-visibilitystate Document.visibilityState]
* [http://dev.chromium.org/developers/design-documents/prerender Chrome prerendering]
* [http://msdn.microsoft.com/en-us/library/ie/dn265039%28v=vs.85%29.aspx Prerender and prefetch support] in Internet Explorer 11 (work in progress)
* [https://www.w3.org/Bugs/Public/show_bug.cgi?id=22737 Bug 22737 - Add link type "prerender" to html5 spec]