For me it's working. I have no idea if the website uses flash or not, or what codecs are required. With these commands, you can install third-party codecs and H.264:

sudo apt-get install ubuntu-restricted-extras sudo apt-get install chromium-codecs-ffmpeg-extra

Try to restart Opera and see if it's working. If not, you may have to install flash. Then there are two alternatives, either:

sudo apt-get install pepperflashplugin-nonfree

(You may also have to run this command:)

sudo update-pepperflashplugin-nonfree --install

However, right now there are problems with the command above, so if you restart Opera and it still isn't working, try the second alternative instead:

1. Open software and updates 2. Click "other software" 3. Check "Canonical partners" 4. Click "Close", then "Reload" in the pop-up. 5. Then run this command: sudo apt-get install adobe-flashplugin

Then restart Opera.