1
            
              In your Joomla dashboard, go to System, then select Plugins
            
           
          
            2
            
              On the next page, search and select TinyMCE
            
           
          
            3
            
              Select Set 0 (for Super Users)
            
           
          
            4
            
              Scroll down and turn on the Use Joomla Text filter
            
           
          
            5
            
              And turn off the Sandbox Iframes toggle
            
           
          
            6
            
              Return to the main dashboard, then go to System and select Text Filters
            
           
          
            7
            
              Make sure that Super Users is set to No Filtering
            
           
          
            8
            
              Paste the embed code to source code editor