Patch failing delete (#1960)

* Patch failing delete

* Fixing unit test

Author: flovilmart

spec/Middlewares.spec.js

@@ -26,9 +26,11 @@ describe('middlewares', () => {
 
     it('should use _ContentType if provided', (done) => {
         expect(fakeReq.headers['content-type']).toEqual(undefined);
-        fakeReq.body._ContentType = 'image/jpeg';
+        var contentType = 'image/jpeg';
+        fakeReq.body._ContentType = contentType;
         middlewares.handleParseHeaders(fakeReq, fakeRes, () => {
-            expect(fakeReq.headers['content-type']).toEqual(fakeReq.body._ContentType);
+            expect(fakeReq.headers['content-type']).toEqual(contentType);
+            expect(fakeReq.body._ContentType).toEqual(undefined);
             done()
         });
     });

src/middlewares.js

@@ -86,7 +86,7 @@ function handleParseHeaders(req, res, next) {
       }
       if (req.body._ContentType) {
         req.headers['content-type'] = req.body._ContentType;
-        delete req.body_contentType;
+        delete req.body._ContentType;
       }
     } else {
       return invalidRequest(req, res);