Do you have jetpack plugin installed? Some of those errors might be caused by that plugin.
Also, it looks like the link to that image inside the <media:> tag is built a little funky. Is that a featured image?
Yes, I have jetpack installed. It´s almost a must-have plugin nowadays. Do you know if it´s a specific part of the Jetpack plugin that cause the problem?
I have deactivated the plugin and the mistake of line 12 is still there.
And the image is a featured image, yes… I don´t know why is build that way. Apparently my theme creates that resize stuff but the ssl I don´t understand much.
Thanks a lot!
I found this in the WordPress forums relating to the issues you are seeing.
https://ww.wp.xz.cn/support/topic/wordpress-feed-issue-use-of-unknown-namespace-com-wordpressfeed-additions1/
The validator really doesn’t like that image link. I can look into updating the plugin to make image URLs more RSS friendly in cases like this.
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This reply was modified 9 years, 1 month ago by
Ethan Allen.
I have achieved to solve the problem about the title modifying on the plugins files “mailchimp-feed-rss2-v1.0.php” and “mailchimp-feed-rss2.php”:
<title><?php bloginfo_rss(‘name’); wp_title_rss(); ?></title>
for
<title><?php wp_title_rss(); ?></title>
So the isn´t the problem of the double title.
Then on enhanced-distribution.php from the Jetpack module folder y just put as a comment the lines: //$output = sprintf( ‘<site xmlns=”com-wordpress:feed-additions:1″>%d</site>’, $id );
I still have that ugly problem of the “&ssl=1” at the end of the images that make my feed invalid: https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fwww.comunicacionabierta.net%2Ffeed%2F.
If you would update the plugin for these cases It would be greatly appreciated.
Thanks a million!
Great sleuthing! I’ll see what I can do for that without affecting other users.
Do you have a list of plugins you are using and what theme so I can test?
Well, it´s a multisite installation and there are many plugins but the point is definitely Jetpack, no doubt.
I found this https://github.com/Automattic/jetpack/issues/4857 and deactivate “Photon”… now it works as you can see… Cool for that, but I don´t know if the page speed will suffer for that 🙁
Let me know your advances and if there is anything from my side I can do as well.
Version 1.4.0 released with the suggestions made by the Jetpack team.
Awesome news! Glad I could help.