Before last update of GP 2.0 my website was 100% valid HTML (without any errors or warning) according to W3C Validation, but now there are a few errors and warnings. I know that is not a big deal, but it annoys me ๐
I found the problem.
That error appears only when background image URL in page header contains Cyrillic letters. When URL include only Latin letters everything is fine.
Thank you for your assistance.
Best regards,
Vesela