Gist code is not displayed

[DukeManh]

What happened:
Code from Gist shows a blank square.
What should have happened:
It should support Gist
Anything else we need to know?:
David suggests adding Gist domain to the allowed iframe host list.

Environment:

• OS:
• Browser:

[manekenpix]

I'm not sure why we've closed this issue, Gist code blocks are still not displayed.

[Kevan-Y]

Some Investigation: Feed Link
When I get the feed data, I see the iframe doesn't have any src could it be this making iframe to display nothing?

<![CDATA[ 
<p>Test</p>
<iframe src="" width="0" height="0" frameborder="0" scrolling="no"><a href="https://medium.com/media/fbc24a94d16f632564698f2b2b08bcc0/href">https://medium.com/media/fbc24a94d16f632564698f2b2b08bcc0/href</a></iframe>
<img src="https://medium.com/_/stat?event=post.clientViewed&referrerSource=full_rss&postId=e0a50cca00ac" width="1" height="1" alt=""> 
]]>