Embed API parent parameter: not working for specific domain

Ok in my initial check I missed this

but currently your code is

    <iframe src="https://clips.twitch.tv/embed?clip=CautiousWrongAmazonTwitchRP&amp;parent=cytu.be"
            height="400"
            width="640"
            scrolling="no"
            allowfullscreen="true">
    </iframe>

The URL should be

https://clips.twitch.tv/embed?clip=CautiousWrongAmazonTwitchRP&parent=cytu.be