Publish date (PubDate) field fails validation

The issue happened also in my setup 4 years later :)

- Drupal: 10.1.8
- Advanced Views RSS Feed: 8.x-2.2

Got fixed with "Rewrite results -> Remove whitespace".

Not changing the issue status as maybe its something specific to our setups.

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The problem can be seen with some debugging in views_rss_format_preprocess_views_view_row_rss, the date contains a "new line" character in the RSS feed and that is not accepted by some readers:

Thu, 14 Dec 2023 06:00:11 +0100\n

Thanks for reporting that, I opened a new issue so we can look into it: 🐛 Tighten up output, remove unnecessary whitespace Active