Thansk, providing the homepage as callback url worked.
Any hint on what to change? We need to make this working and I believe you that it is some misconfiguration but I don’t know which parameter…
Please be more specific about the twitter settings – I followed your instructions.
Have a look at my settings: http://i.imgur.com/pVXjw5C.png
Btw: this forum does not allow uploads of screenshots…
Same here – entered all the data and followed the doc but just getting a reload.