Page freezes when completing a lesson, progress lost
Just started using Duolingo on the laptop after using the phone app for a few months to practice my newly-learned touch typing skills while learning Spanish. However, whenever I answer the final question in a lesson and press enter, the "Check" button will freeze and I can only quit the lesson, losing all my progress. Any idea why this is happening and what I can do about it? Thanks a lot!
I'm on a 2011 Mac Book Pro running OS 10.9.4 and using Safari 7.0.6.