Myheritage Blog valid Feed, but xml error: Opening and ending tag mismatch

[brezelman]

Steps to reproduce:

1. Add feed https://blog.myheritage.com/home/feed/

Error:

malformed xml string. parsing error : DOMDocument::loadXML(): Opening and ending tag mismatch: meta line 1 and head in Entity, line: 1 (2)

Nextcloud News Version 21.2.0.

W3C validator states, it's a perfectly valid feed: https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fblog.myheritage.com%2Fhome%2Ffeed%2F

[Grotax]

Hmm yea the error exactly says what the issue is.

The XML doesn't have a closing tag.

I don't think we need to support this, the owner of the feed should check what is going on there . Normally wordpress is able to produce working feeds but maybe some plugin breaks it or whatever.

[brezelman]

the error is incorrect. The feed starts with rss tag and ends with the corresponding rss end tag.

[anoymouserver]

Maybe the problem is that the feed is completely empty (doesn't contains any items).

This is the response I got using curl https://blog.myheritage.com/home/feed/:

<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	
	>
<channel>
	<title>
	Comments on: Home	</title>
	<atom:link href="https://blog.myheritage.com/home/feed/" rel="self" type="application/rss+xml" />
	<link>https://blog.myheritage.com/</link>
	<description>Latest News on DNA Ethnicity and Family Heritage</description>
	<lastBuildDate>Tue, 29 Mar 2022 10:24:57 +0000</lastBuildDate>
	<sy:updatePeriod>
	hourly	</sy:updatePeriod>
	<sy:updateFrequency>
	1	</sy:updateFrequency>
	<generator>https://wordpress.org/?v=6.2.2</generator>
</channel>
</rss>

[brezelman]

The main feed of the site (https://blog.myheritage.com/feed/) has elements in it, but the same error occurs.

Maybe the problem is, that the rss opening tag is defined in multiple lines? (Which is perfectly valid, too, of course.)

[Grotax]

I looked into it again, it seems like it is happening during the building of the items, no idea why it fails though.
Too complicated to analyze, would require additional logging.

They are definitly doing something strange though, since normally wordpress blogs just work fine.

[brezelman]

I checked the MyHeritage blog feeds again, and I can't find anything strange.

http://blog.myheritage.com/feed/
http://blog.myheritage.com/feed/rss/
http://blog.myheritage.com/feed/rss2/
http://blog.myheritage.com/feed/rdf/
http://blog.myheritage.com/feed/atom/

Everyone fails because of the stated error.

I compared the syntax of the rss feed from https://blog.myheritage.com/feed/ to the one from https://www.compgen.de/feed/. The one from compgen is working, even though I couldn't find any syntax different.