I use the wp_oEmbed and the edge suite plug-in and in both cases the hidden off-stage elements are visible. This seems to only happen in WordPress. Standard HTML iframe does not have this problem, not does the simple html generated by edge. This seems to happen in all browsers. I even tried inline styling with a div and overflow hidden command. Is there a setting I need to fix this?
Can you post a link to the page you are having problem with?
The animation is https://www.tombonham.com/edge/EDGE-PGoGSL/PGoGSLedge.html
The coding is
$edge_url = 'https://www.tombonham.com/edge/EDGE-PGoGSL/PGoGSLedge.html';
echo wp_oembed_get( $edge_url );