{"url_prefix":"http:\\/\\/incsub-development.com\\/wp-content\\/uploads","api_key":"3f2750fe583d6909b2018462fb216a2c5d5d75a9","token":"4491cbc211","remove_meta":0,"progressive":1,"gif_to_png":1,"data":[{"attachment_id":"52","path_prefix":"2014\\/08","files":{"thumbnail":"DSC_0098-150x150.jpg","medium":"DSC_0098-300x200.jpg","large":"DSC_0098-1024x682.jpg","post-thumbnail":"DSC_0098-672x372.jpg","twentyfourteen-full-width":"DSC_0098-1038x576.jpg"}}]}

Gets converted to

{ '{"url_prefix":"http:\\/\\/incsub-development.com\\/wp-content\\/uploads","api_key":"3f2750fe583d6909b2018462fb216a2c5d5d75a9","token":"4491cbc211","remove_meta":0,"progressive":1,"gif_to_png":1,"data":[{"attachment_id":"52","path_prefix":"2014\\/08","files":{"thumbnail":"DSC_0098-150x150.jpg","medium":"DSC_0098-300x200.jpg","large":"DSC_0098-1024x682.jpg","post-thumbnail":"DSC_0098-672x372.jpg","twentyfourteen-full-width":"DSC_0098-1038x576.jpg"}}]}': '' }


by form.parse