Allowing iframes with protocol independent URLs

[ossia (Quincy Larson)]

I’m trying to get libsyn.com’s podcast player to render in an embedded iFrame on our Discourse instance.

YouTube’s iFrames now render fine in an embedded iFrame. Here’s how I configured it:

And yet here is the result:

Any idea what I’m doing wrong with the allowed iframe list URL syntax? I tried regular expressions and couldn’t get those to work either.

[mpalmer (Matt Palmer)]

You’re using the scheme-independent pseudo-URL in the iframe src, but that isn’t one of the valid source domain prefixes you’ve listed.

[ossia (Quincy Larson)]

Wow - I had no idea the scheme-independent pseudo-URL was a valid input for the whitelist, but it worked. Thanks, @mpalmer!