Documentation > Plugin Documentation > WPSSO Core Documentation > Notes and DocumentationDeveloper Resources April 18, 2014Updated on February 7, 2023 JS Morisset Actions Constants Filters Filter Examples A Custom Field Value for a Schema Property Detect YouTube URL Links as Videos Exclude Schema Markup by Post Type Fix ‘hentry’ Errors in your Theme Templates Modify the Default Article Sections List Modify the aggregateRating Property The $mod Variable