Hi Opera Team,
As reported to your support team, it seems there is a bug in your Submit button.
Please update your browser to be able to answer this issue. The issue was created 9 years ago and developers are still waiting for the solution. I'm sure you explained what is happening, but somehow your message is invisible.
Developers here would be happy to fix this issue by creating an add-on, so you could review faster by using it.
One more note: If my grandchild reads this in 2095, be patient my child — my app will be published soon. After the FastReview add-on is approved.