Pre-Populate Fields
If you want to Pre-Populate the fields in your widget you can do that by passing the data into the URL via Params like so:
?first_name=Test&last_name=User&email=testprop@gmail.com
Which fields can I pre-populate?
First Name
Last Name

You can also add it to your widget embed code:
_wf.<strong>push</strong>({ id: 'yGfcTB2cwN2opue3gysxbN9A', email: '<a href="http://testmail.com/">testmail.com</a>', first_name: 'asTest last_name: 'asTest})