Is sandbox in iframes not supported?

[CMGSK]

I wanted to implement a little sandbox iframe in my web to test an injectable dynamic javascript feature, but i see that sandbox is not an element of iframe anymore... although it appears in the source code commented as sandbox: SpacedSet<Sandbox> along many other SpacedSet<_> html attributes.

Is there any particular reason this is not supported? Am I missing something, maybe? I'd appreciate some insight.

[jkelleyrtp]

You can add attributes that we don't support by putting "sandbox" in quotes:

rsx! {
    iframe { "sandbox": "...values"  }
}

but in reality we should just update iframe to have the sandbox attribute directly.

[CMGSK]

Oh you can do that? Now I feel stupid for not trying that out.... Thank you!!! hahaha