After disabling the rule, you can see what blocks the embedding from working properly:<br>[20:53:22.959] GET <a href="http://images.ted.com/crossdomain.xml" target="_blank">http://images.ted.com/crossdomain.xml</a> [HTTP/1.1 200 OK 44ms]<br>

<br>Because we rewrite <a href="http://images.ted.com" target="_blank">http://images.ted.com</a> to <a href="https://www.ted.com" target="_blank">https://www.ted.com</a> the crossdomain.xml file is entirely different.<br>
<br>Using curl (to avoid having to constantly toggle the rule), I get this:<br>
<cross-domain-policy><br>        <allow-access-from domain="*.<a href="http://ted.com" target="_blank">ted.com</a>"/><br></cross-domain-policy><br><br>Using <a href="https://www.ted.com/crossdomain.xml" target="_blank">https://www.ted.com/crossdomain.xml</a><br>

<cross-domain-policy><br>       <site-control permitted-cross-domain-policies="master-only"/><br>       <allow-access-from domain="*.<a href="http://ted.com" target="_blank">ted.com</a>"/><br>
</cross-domain-policy><br>
<br>Unfortunately, setting an exclusion pattern for that doesn't do the trick. For some reason, it doesn't load <br><a href="https://www.ted.com/images/ted/tedindex/embed-posters/GaryKovacs_2012U-embed.jpg">https://www.ted.com/images/ted/tedindex/embed-posters/GaryKovacs_2012U-embed.jpg</a> but with the rule disabled, it will load<br>
<a href="http://images.ted.com/images/ted/tedindex/embed-posters/GaryKovacs_2012U-embed.jpg">http://images.ted.com/images/ted/tedindex/embed-posters/GaryKovacs_2012U-embed.jpg</a>. It doesn't make sense except that this<br>
is a similar issue to the CDN topic, i.e., it works for individual URLs and on the actual website but not embedded in other websites.<br><br><div class="gmail_quote">On Thu, May 3, 2012 at 3:35 PM, Janne Maekelae <span dir="ltr"><<a href="mailto:skrubaduba@gmx.com" target="_blank">skrubaduba@gmx.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<span style="font-family:Verdana"><span style="font-size:12px"><span style="font-family:verdana"><span style="font-size:12px">Here: </span></span><a href="https://blog.mozilla.org/blog/2012/05/03/ted-u-talk-gary-kovacs-tracking-the-trackers/" target="_blank">https://blog.mozilla.org/blog/2012/05/03/ted-u-talk-gary-kovacs-tracking-the-trackers/</a></span></span>
</blockquote></div><br>