Dear all,
After sleeping some nights over this issue, I looked again at the acf JS code and suddenly found the wysiwyg_tinymce_settings filter. This helped me to modify the input fo the tinymce.init() call. My solution is:
function my_acf_input_admin_footer() {
?>
<script type="text/javascript">
acf.add_filter('wysiwyg_tinymce_settings', function( mceInit, id, $field ){
mceInit.valid_elements = 'p,strong,em,del,span[style="text-decoration: underline;"]';
return mceInit;
});
</script>
<?php
}
add_action('acf/input/admin_footer', 'my_acf_input_admin_footer');
This restricts the editor to only use b, i, del and underlining.
Now I’m happy again 🙂
