Can't access Yahoo email after updating Safari

Last week I updated to Safari 9.0.2 (along with my operating system to El Capitan). After doing so I can no longer access my Yahoo email. I can see it in the preview but once I click on mail it will be stuck loading. I cleaned out my cookies and cache, restarted my computer, and checked all my updates to make sure they were current. Everything looks good but I still can't access my email. I also contact Yahoo and they said since it is only happening on Safari it wasn't on their end (I can access my email on Firefox & Chrome though it does seem a little slower than usual). Does anyone have any ideas??