Out of curiosity I started Chromium in which I had installed the ScriptNo extension. When I clicked the ScriptNo button I was surprised: There wasn't only the stage-entertainment.de domain (and etrackers.com) but also www.ticketonline.de. After whitelisting that one, too, I was referred to another site where I could chose the day and so forth for my online order. The funny thing is: ticketonline.de doesn't even show up in the Noscript menu so I wasn't able to whitelist that domain! Even after trying to generally allow scripting in Noscript, I wasn't referred to the order site. A bug?
The error console shows several errors:
