diff --git a/src/editors/data/services/cms/api.js b/src/editors/data/services/cms/api.js
index cb3b22236..b1e407ad6 100644
--- a/src/editors/data/services/cms/api.js
+++ b/src/editors/data/services/cms/api.js
@@ -11,11 +11,6 @@ export const apiMethods = {
   ),
   fetchByUnitId: ({ blockId, studioEndpointUrl }) => get(
     urls.blockAncestor({ studioEndpointUrl, blockId }),
-    {
-      headers: {
-        Accept: '*/*',
-      },
-    },
   ),
   fetchStudioView: ({ blockId, studioEndpointUrl }) => get(
     urls.blockStudioView({ studioEndpointUrl, blockId }),
diff --git a/src/editors/data/services/cms/api.test.js b/src/editors/data/services/cms/api.test.js
index cb4ac4e61..289ec8ed9 100644
--- a/src/editors/data/services/cms/api.test.js
+++ b/src/editors/data/services/cms/api.test.js
@@ -15,18 +15,18 @@ jest.mock('../../../utils', () => {
 });
 
 jest.mock('./urls', () => ({
-  block: jest.fn().mockReturnValue('urls.block'),
-  blockAncestor: jest.fn().mockReturnValue('urls.blockAncestor'),
-  blockStudioView: jest.fn().mockReturnValue('urls.StudioView'),
-  courseAssets: jest.fn().mockReturnValue('urls.courseAssets'),
-  videoTranscripts: jest.fn().mockReturnValue('urls.videoTranscripts'),
-  allowThumbnailUpload: jest.fn().mockReturnValue('urls.allowThumbnailUpload'),
-  thumbnailUpload: jest.fn().mockReturnValue('urls.thumbnailUpload'),
-  checkTranscriptsForImport: jest.fn().mockReturnValue('urls.checkTranscriptsForImport'),
-  courseDetailsUrl: jest.fn().mockReturnValue('urls.courseDetailsUrl'),
-  courseAdvanceSettings: jest.fn().mockReturnValue('urls.courseAdvanceSettings'),
-  replaceTranscript: jest.fn().mockReturnValue('urls.replaceTranscript'),
-  videoFeatures: jest.fn().mockReturnValue('urls.videoFeatures'),
+  block: jest.fn().mockName('urls.block'),
+  blockAncestor: jest.fn().mockName('urls.blockAncestor'),
+  blockStudioView: jest.fn().mockName('urls.StudioView'),
+  courseAssets: jest.fn().mockName('urls.courseAssets'),
+  videoTranscripts: jest.fn().mockName('urls.videoTranscripts'),
+  allowThumbnailUpload: jest.fn().mockName('urls.allowThumbnailUpload'),
+  thumbnailUpload: jest.fn().mockName('urls.thumbnailUpload'),
+  checkTranscriptsForImport: jest.fn().mockName('urls.checkTranscriptsForImport'),
+  courseDetailsUrl: jest.fn().mockName('urls.courseDetailsUrl'),
+  courseAdvanceSettings: jest.fn().mockName('urls.courseAdvanceSettings'),
+  replaceTranscript: jest.fn().mockName('urls.replaceTranscript'),
+  videoFeatures: jest.fn().mockName('urls.videoFeatures'),
   courseVideos: jest.fn()
     .mockName('urls.courseVideos')
     .mockImplementation(
@@ -64,7 +64,7 @@ describe('cms api', () => {
     describe('fetchByUnitId', () => {
       it('should call get with url.blockAncestor', () => {
         apiMethods.fetchByUnitId({ blockId, studioEndpointUrl });
-        expect(get).toHaveBeenCalledWith(urls.blockAncestor({ studioEndpointUrl, blockId }), { headers: { Accept: '*/*' } });
+        expect(get).toHaveBeenCalledWith(urls.blockAncestor({ studioEndpointUrl, blockId }));
       });
     });