The Common Application attempts to read what you have on your clipboard before allowing you to paste anything in. Modern browsers do not allow clipboard access due to security reasons, breaking the paste functionality of the Common Application. This extension overrides these checks and allows you to paste without hassle. Enjoy!
Safari extension: (Can't install? Try: how to install)
install safari extension
Need help? Shoot an email to hncod@code(dt)joust.com