add file type .dwf

README.md

@@ -84,11 +84,6 @@ Please follow this guidelines when reporting bugs and feature requests:
 
 Thanks for understanding!
 
-# Tutorial with backend implmentation 
-
-- [Complete example with backend implementation in Node.js](https://ciphertrick.com/file-upload-angular-nodejs/). 
-
-
 ### License
 
 The MIT License (see the [LICENSE](https://github.com/valor-software/ng2-file-upload/blob/master/LICENSE) file for the full text)

src/file-upload/file-type.class.ts

@@ -100,6 +100,7 @@ export class FileType {
       'tiff': 'image',
       'cr2': 'image',
       'dwg': 'image',
+      'dwf': 'image',
       'cdr': 'image',
       'ai': 'image',
       'indd': 'image',