Somehow the Stream-Window just kept black with Firefox.
But I dug up the direct link for the stream: https://video.ibm.com/embed/23996224
But I dug up the direct link for the stream: https://video.ibm.com/embed/23996224
In this case, we're a paying customer of the provider, not the product.
If you are interested in how I made it: [link redacted]
Still waiting on my email to show up though. Apparently it's awaiting review.