- This topic has 2 replies, 2 voices, and was last updated 1 year, 11 months ago by .
Within the meta-box/ing/sanitizer.php file, all the field types with a string sanitizer (buit-in WP sanitizing) are returning empty strings and values are not saved.
'email' => 'sanitize_email',
'file_input' => 'esc_url_raw',
'hidden' => 'sanitize_text_field',
'oembed' => 'esc_url_raw',
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