In rails 4.0.2, I am using paperclip gem to upload files. But it is not supporting .doc file. Below the file upload field, it is showing an error message as "has an extension that does not match its contents"
In model, the validation for checking the content type is given below :
validates_attachment_content_type :document, :content_type => ['application/txt', 'text/plain',
'application/pdf', 'application/msword',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'application/vnd.oasis.opendocument.text',
'application/x-vnd.oasis.opendocument.text',
'application/rtf', 'application/x-rtf', 'text/rtf',
'text/richtext', 'application/doc', 'application/docx', 'application/x-soffice', 'application/octet-stream']
Gems which is used right now
rails (4.0.2, 4.0.0, …