Rss widget for Yandex. What am I doing wrong?

Question

RSS

Hello. Tell me, please, I 've been racking my brain all day...
I want to make a widget. site on https protocol. Constantly pops up an error: Error while reading RSS feed. If you insert an xml file from another site advertseo-helper.ru/feed into the RSS path field , then everything is displayed perfectly . I played with xml files of other sites for a long time, trying to understand the reason, I noticed that if you insert xml from another site https://dle-news.ru/rss.xml,

then a similar error pops up .. And if you insert it without the https protocol: dle-news.ru/rss.xml, then everything is displayed perfectly ..
Good people, tell me, please, what is my mistake?
Thank you very much in advance!

Answer 1

you here .