RSS (FEED Validator)

I am not specialist in RSS, but I see the error.

atom:id must be a full and valid URL

Try to validate http://demo.nopcommerce.com/blog/rss/1

http://feedvalidator.org
http://feedvalidator.org/check.cgi?url=http%3A%2F%2Fdemo.nopcommerce.com%2Fblog%2Frss%2F1

https://validator.w3.org
https://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fdemo.nopcommerce.com%2Fblog%2Frss%2F1

Thanks a lot for reporting! We'll investigate it. Please find this work item here

Done. Please see this changeset
Thanks for suggestion!

Please remove } for news RSS.

string.Format("urn:store:{0}:news}", _storeContext.CurrentStore.Id),

Try to validate feed
https://validator.w3.org
http://feedvalidator.org

They have recommendations

Recommendations

This feed is valid, but interoperability with the widest range of feed readers could be improved by implementing the following recommendations.

    line 1, column 0: Avoid Namespace Prefix: a10 [help]

        <?xml version="1.0" encoding="utf-8"?><rss xmlns:a10="http://www.w3.org/2005 ...

    line 1, column 1827: Missing atom:link with rel="self" [help]

        ... 2-12T21:01:05-08:00</a10:updated></item></channel></rss>

I think we must fellow their recommendations.
Thank you.

Thanks for suggestion! I've just created one more work item

Done. Please see this commit for more details

Внес рекомендованные изменения в код, но проблема не пофиксилась.
При нажатии на иконку (RSS) приложение вылетает и на странице HTML код.
Это наблюдается в пунктах: Новости, Новинки, Блог и Следите за нами.