Parse error for CISA feed

I’m getting a parse error for the following site but it seems to be working properly when I use a browser to view the feed. Any help is greatly appreciated.

https://www.cisa.gov/cybersecurity-advisories/all.xml

You can embed the RSS feeds for saved stories and folders that NewsBlur provides to premium subscribers. That way you can feed stories to a RSS module on your website that is seeded from NewsBlur.

Thank you very much for your quick reply! Love Newsblur! Hopefully they respond soon.

Are there any updates to this? It appears that the CISA feeds are still unavailable in Newsblur.

We can probably help speed this along by contacting CISA as users and relaying the information that Samuel has provided in his email to them. I’ve sent it through both methods.
https://www.cisa.gov/forms/feedback
info@us-cert.gov