embed script is used in this app (http://app.searchenabler.com/)
you can see flows on that app here: - http://www.searchenabler.com/faqs/
you can see flows on that app here: - http://www.searchenabler.com/faqs/
Anyways, I probably won't add it to my project because, while I think it could be useful, I don't really like how it looks and I think the error handling could be improved. For example, when I clicked the login button in the example you sent the guider just disappeared.