TYPO3: Data-attributes of tags in ckeditor configuration of my plugin are striped
问题 I wrote a small plugin to add a button to ckeditor, so that the user can add a tooltip-codesnippet into the editor. This works perfect. After closing the dialog the code is correctly inserted. When I save afterward the text my site is reloading and my data-attributes are gone. In my plugin I added: CKEDITOR.plugins.add('tooltip', { lang: [ 'en', 'de'], init: function (editor) { editor.addCommand('tooltip', new CKEDITOR.dialogCommand('tooltip', { allowedContent: 'span[data-hint-content]; sup'