Lmao here was sngine response
This iframe code is not coming from Sngine but this is what Sngine get from the twitch itself.
Like in here: Embed tests
Sngine use the same library BTW.
So Sngine simply save this HTML code returned and then display it, So there is no way to do so unless you add some code to check if it’s twitch or not and then add some code to do whatever you want,
includes/class-user.php