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Viewing file:     URI.SafeIframeRegexp.txt (897 B)      -rw-r--r--

URI.SafeIframeRegexp
TYPE: string/null
VERSION: 4.4.0
DEFAULT: NULL
--DESCRIPTION--
<p>
    A PCRE regular expression that will be matched against an iframe URI.  This is
    a relatively inflexible scheme, but works well enough for the most common
    use-case of iframes: embedded video.  This directive only has an effect if
    %HTML.SafeIframe is enabled.  Here are some example values:
</p>
<ul>
    <li><code>%^http://www.youtube.com/embed/%</code> - Allow YouTube videos</li>
    <li><code>%^http://player.vimeo.com/video/%</code> - Allow Vimeo videos</li>
    <li><code>%^http://(www.youtube.com/embed/|player.vimeo.com/video/)%</code> - Allow both</li>
</ul>
<p>
    Note that this directive does not give you enough granularity to, say, disable
    all <code>autoplay</code> videos.  Pipe up on the HTML Purifier forums if this
    is a capability you want.
</p>
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