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Difference between revisions of "AllowSeamless"

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(Examples)
(Overview)
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==Overview==
 
==Overview==
  
TODO
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Currently, [http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-seamless seamless iframes] work only with same-origin document because otherwise the parent document could steal information from the child document, such as how much content it contains.
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There are use cases (see below) for using seamless iframes with cross-origin documents.  This proposal provides a way for documents to opt into being seamless with cross-origin parents.
  
 
==Use Cases==
 
==Use Cases==

Revision as of 01:30, 24 May 2012

Overview

Currently, seamless iframes work only with same-origin document because otherwise the parent document could steal information from the child document, such as how much content it contains.

There are use cases (see below) for using seamless iframes with cross-origin documents. This proposal provides a way for documents to opt into being seamless with cross-origin parents.

Use Cases

TODO

Examples

<html allowseamless>
<body>
If my parent iframe has the seamless attribute, then <a href="http://example.com">this
example link</a> will navigate my parent and the iframe will autosize to the right height
 and width.
</body>


<html allowseamless="inherit-style">
<body>
Now in addition to the above, I will inherit styles from my parent. Inheriting styles requires
an additional opt-in because letting my parent style me could leak more information (such
as the value of form input elements) to my parent.
</body>