gfpdf_wp_kses_allowed_html

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 HTML tags in any Core/Universal template.

Version

This filter was introduced in Gravity PDF 6.4.2

Parameters

$tags | array

• An array of allowed HTML tags and attributes for use in Core / Universal PDF templates. The correct format for $tags can be found in the WordPress.org developer documentation on wp_kses().

Usage

Add support for the <formfeed> mPDF control tag:

add_filter( 'gfpdf_wp_kses_allowed_html', function( $tags ) {

    $tags['formfeed'] = [
        'orientation'      => true,
        'type'             => true,
        'resetpagenum'     => true,
        'pagenumstyle'     => true,
        'suppress'         => true,
        'page-selector'    => true,
        'margin-left'      => true,
        'margin-right'     => true,
        'margin-top'       => true,
        'margin-bottom'    => true,
        'odd-header-name'  => true,
        'odd-footer-name'  => true,
        'odd-header-value' => true,
        'odd-footer-value' => true,
    ];
    
    return $tags;
} );

Source Code

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