Hi,
So, I didn't find the problem.
If I add an exit at the end of the frontend processing of HikaShop, I do see the product page content (without the template around). This means that the issue is not during the processing in HikaShop.
I also tried to switch to the default template just in case, but again, same issue.
So, I'm out of ideas on the causes.
So I've switched to the next best thing which is to make it work around the problem.
For that, I've done two things:
- I've edited the settings of the Joomla debug plugin and disabled everything there. That way, no sensible information is displayed in the debug bar at the bottom.
- I've added a piece of CSS to hide the debug bar.
So, right now, it works and the debug bar doesn't display. It's not pretty, but I couldn't find better. The problem is probably elsewhere on the website.