{"type":"rich","version":"1.0","title":"Cascading DDL with filtering","author_name":"dtopalov","author_url":"https://plnkr.co/users/dtopalov","provider_name":"Plunker","provider_url":"https://plnkr.co","html":"<iframe id=\"plnkr_embed_01so5Z0SxNLNq8E38bez\" class=\"plnkr_embed_iframe\" style=\"width: 100%; overflow: hidden;\" src=\"https://embed.plnkr.co/plunk/01so5Z0SxNLNq8E38bez?autoCloseSidebar&deferRun&show=preview\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":600,"height":400,"thumbnail_url":"https://shot.plnkr.co/01so5Z0SxNLNq8E38bez.png?d=2017-08-07T12%3A53%3A12.060Z","thumbnail_width":400,"thumbnail_height":300}