WordPress update_comment_meta onclick not working with Ajax


I’m attempting to update_comment_meta via Ajax call in WordPress, but no data is returned and the comment_meta field is not being updated.

Fun.php

add_action( 'wp_enqueue_scripts', 'comment_voting_enqueue_scripts' ); function comment_voting_enqueue_scripts() {   wp_enqueue_script( 'comment_meta_voting-js', get_template_directory_uri() . '/js/ajax-vote.js', array( 'jquery' ), '0.5', false );   wp_localize_script( 'comment_meta_voting-js', 'commentMetaVoting', array(     'ajaxurl' => admin_url( 'admin-ajax.php' ),   ) ); } add_action( 'wp_ajax_nopriv_comment_meta_voting', 'comment_meta_voting' ); add_action( 'wp_ajax_comment_meta_voting', 'comment_meta_voting' );  function comment_meta_voting() {     $  comment_id = $  _POST['vote'];     $  vote_total = get_comment_meta($  comment_id , 'vote', true);     ++$  vote_total;     update_comment_meta($  comment_id , 'vote', $  vote_score );     die(); } 

ajax-vote.js

(function($  ) {     'use strict';     $  (document).on('click', '.sl-button', function() {         var button = $  (this);         var cmnt_id = button.attr('data-post-id');         var security = button.attr('data-nonce');              $  .ajax({                 type: 'POST',                 url: commentMetaVoting.ajaxurl,                 data : {                     action : 'comment_meta_voting',                     post_id : cmnt_id,                     nonce : security,                 },                 success: function(response){                     console.log('tst');                 }             });          return false;     }); })(jQuery); 

and in wp_list_comments callback i add core function where i want to show the link to call:

     <a href="<?php echo admin_url( 'admin-ajax.php?action=comment_meta_voting' . '&cmnt_id=' . $  commentid . '&nonce=' . $  nonce ); ?>" class="sl-button" data-nonce="<?php echo $  commentid ; ?>" data-post-id="<?php echo $  commentid ; ?> ">click</a> 

Finally i get console.log(‘tst’); in thee console.. so i think its correct, no data is returned and the comment_meta field is not being updated..

any help?