I have reports that this sandbox is failing intermittently only in Safari. I don't have a Safari machine to test with. Reports say that the content pane on th

I have reports that this sandbox is failing intermittently only in Safari. I don't have a Safari machine to test with. Reports say that the content pane on the right is empty. By default, there should be a clickable button in it, which is the sandbox output. https://mutraction.dev/sandbox/?view=normal https://mutraction.dev/sandbox/?view=normal Reports say there is some iframe load failure showing in the network monitor. Every file being loaded is a normal static file served from a CDN. Also, sometimes, when it fails there's a rare chance that a reload will make it work?