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Version: v6

gfpdf_wp_kses_allowed_pdf_protocols

Description​

To improve security, in Gravity PDF 6.4 we introduced a number of changes to how templates get rendered. To that end, all HTML mark-up generated by Gravity PDF in Core and Universal templates is now sanitizing by a customized wp_kses() function.

Use this filter to modify the allowed file protocols supported in PDFs eg. http:// or data.

Version​

This filter was introduced in Gravity PDF 6.4.2

Parameters​

$tags | array​

  • An array of allowed protocols used in links or images

Usage​

Remove support for the ftp protocol:

add_filter( 'gfpdf_wp_kses_allowed_pdf_protocols', function( $protocols ) {
    $match = array_search( 'ftp', $protocols, true );
    if ( $match !== false ) {
        unset( $protocols[ $match ] );
    }
    
    return $protocols;
} );

Source Code​

This filter is located in the Kses.php files in the /src/Statics/ directory.