Handling error case when a user uploads a string and not a file to /api/upload.json.
Handling error case when a user uploads a string and not a file to /api/upload.json.

dannguyen/documentcloud,documentcloud/documentcloud,moodpo/documentcloud,ivarvong/documentcloud,monofox/documentcloud,documentcloud/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,moodpo/documentcloud,dannguyen/documentcloud,moodpo/documentcloud,documentcloud/documentcloud,dannguyen/documentcloud,monofox/documentcloud,dannguyen/documentcloud,monofox/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,roberttdev/dactyl4,gunjanmodi/documentcloud,documentcloud/documentcloud,roberttdev/dactyl,gunjanmodi/documentcloud,moodpo/documentcloud,ivarvong/documentcloud,ivarvong/documentcloud,gunjanmodi/documentcloud,roberttdev/dactyl,roberttdev/dactyl4,monofox/documentcloud,roberttdev/dactyl4,ivarvong/documentcloud,roberttdev/dactyl,roberttdev/dactyl4,gunjanmodi/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud