{"type":"rich","version":"1.0","title":"filtering with external fields doesn't work","author_name":"davidmichaelkarr","author_url":"https://plnkr.co/users/davidmichaelkarr","provider_name":"Plunker","provider_url":"https://plnkr.co","html":"<iframe id=\"plnkr_embed_Sb6AeAs5WxY9D1L14X0n\" class=\"plnkr_embed_iframe\" style=\"width: 100%; overflow: hidden;\" src=\"https://embed.plnkr.co/plunk/Sb6AeAs5WxY9D1L14X0n?autoCloseSidebar&deferRun&show=preview\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":600,"height":400,"thumbnail_url":"https://shot.plnkr.co/Sb6AeAs5WxY9D1L14X0n.png?d=2014-03-17T20%3A25%3A15.167Z","thumbnail_width":400,"thumbnail_height":300}