Display ticket IDs in Jira's subtask table

code.js

(function($){
  $('head').append('<style>.bookmarklet-issue-id {color: #fff; background: #3b73af; padding: 1px 2px; border-radius: 5px;}</style>');
  $('.subtask-table-container tbody > tr.issuerow').each(function() {
    var $this = $(this);
    var $id = $this.data('issuekey');
    var $firstRow = $this.children('td:first');

    $firstRow.after('<td><pre class="bookmarklet-issue-id">' + $id + '</pre></td>');
  });
}(jQuery));