Jsfiddle with 500 Internal Server Error, Twitter with Overcapacity
What's going on?
https://dev.twitter.com/status
Which links to, e.g., what looks like big problems with the home timline:
https://status.io.watchmouse.com/7617/125017//statuses/home_...
I realise that I do a lot of Twitter and other API development, and so it's easy for me to say, but I don't think it's too crazy to suggest you should be looking in their general direction for answers first.