Substack feeds seem to not work

Hey there,

Just tried adding my first feed from substack, and it is erroring out. Substack claims to provide an rss feed:

And the w3 validator seems reasonably happy with it:

But no dice getting it into newsblur. Thoughts?

You can use <![CDATA[On Substack]]> as a testcase, or <![CDATA[Bet On It]]> is the one I am actually trying to add.

<![CDATA[Bet On It]]> worked fine. perhaps substack was misbehaving when you tried?

Ah, looks like it. I think it had an iframe in it last night, and that has disappeared, that may have been what was causing the error.