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moodle/lib/htmlpurifier/HTMLPurifier/ConfigSchema/schema/URI.SafeIframeRegexp.txt
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Daniel Ziegenberg be7f6d4834 MDL-74823 lib: normalize line endings for HTMLPurifier
Prior to this change, all the line endings in the imported HTMLPurifier
library were using CRLF (\r\n aka Windows style), but the HTMLPurifier
source and also the downloadable artefacts use LF (\n aka Linux style)
as line endings. This has been the case since
510d190382 when with the commit
"MDL-38672 import HTML Purifier 4.5.0" all line endings were changed
from LF to CRLF. There was no comment in the commit on why this change
was done.

As the original source uses LF, this commit partly reverts
510d190382 and goes back to LF as line
endings.

Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>
2022-11-17 18:26:26 +01:00

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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>
--# vim: et sw=4 sts=4