Note for later - we'll want to move to Dropbox's new save_url endpoint.

Oh! I just have to type "r/cpp" instead of "cpp". Sorry... works just the wrong default value. Awesome function!

Looks like this no longer works?

I get a proper pdf with those inputs: https://api.blockspring.com/results/8bc25e917b803df569c28a282cb187bc 

What is inside of $content? Is there any html? Copy/paste that into the form on this page, what do you see?