To embed the widget into popular CMS platforms, you must first review the CMS pre-requisites.
The restriction prevents the widget to work correctly. To fix this, there is a third party plug-in available that disables these restrictions and allows the widget to function correctly.
The following steps are required to disable this restriction:
- Install and activate the “Preserved HTML Editor Markup Plus” plug-in.
[See https://wordpress.org/plugins/preserved-html-editor-markup-plus/ ]
- Switch from the Visual to the Text edit mode and paste the widget code.