Cannot enter comments on Falkon web browser from demo site

Hi,

I don't expect support for this as this is a browser that not too many people use, but just to let you know that you end up with JS error when :

-adding a new comment when using the Falkon web browser on your demo site

You specifically need to install Falkon web browser to see this issue

Version 3.1.0 of Falkon
Version 5.12.8 of QtWebEngine