diff --git a/src/lib/Preview.js b/src/lib/Preview.js
index 25403a5e4..f79718a9e 100644
--- a/src/lib/Preview.js
+++ b/src/lib/Preview.js
@@ -707,6 +707,7 @@ class Preview extends EventEmitter {
         preload = false,
         isDocFirstPrefetchEnabled = false,
         docFirstPagesConfig = null,
+        isAccessTokenHeaderEnabled = false,
     }) {
         let file;
         let loader;
@@ -747,6 +748,10 @@ class Preview extends EventEmitter {
             options.sharedLinkPassword = sharedLinkPassword;
             options.isDocFirstPrefetchEnabled = isDocFirstPrefetchEnabled;
             options.docFirstPagesConfig = docFirstPagesConfig;
+            options.features = {
+                ...this.options.features,
+                migrateAccessTokenToHeader: isAccessTokenHeaderEnabled,
+            };
         }
 
         const viewerInstance = new viewer.CONSTRUCTOR(this.createViewerOptions(options));
diff --git a/src/lib/__tests__/Preview-test.js b/src/lib/__tests__/Preview-test.js
index 764de4115..af20988dc 100644
--- a/src/lib/__tests__/Preview-test.js
+++ b/src/lib/__tests__/Preview-test.js
@@ -744,6 +744,7 @@ describe('lib/Preview', () => {
                 sharedLinkPassword,
                 isDocFirstPrefetchEnabled: false,
                 docFirstPagesConfig: null,
+                features: { migrateAccessTokenToHeader: false },
             });
         });
 
@@ -805,6 +806,43 @@ describe('lib/Preview', () => {
 
             preview.prefetch({ fileId, token, sharedLink, sharedLinkPassword, preload: true });
         });
+
+        test('should pass migrateAccessTokenToHeader feature to viewer options when isAccessTokenHeaderEnabled is true', () => {
+            jest.spyOn(loader, 'determineViewer').mockReturnValue(viewer);
+            jest.spyOn(preview, 'createViewerOptions');
+            preview.options.features = { existingFeature: true };
+
+            preview.prefetch({
+                fileId,
+                token,
+                sharedLink,
+                sharedLinkPassword,
+                preload: true,
+                isAccessTokenHeaderEnabled: true,
+            });
+
+            expect(preview.createViewerOptions).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    features: { existingFeature: true, migrateAccessTokenToHeader: true },
+                }),
+            );
+            expect(preview.options.features).toEqual({ existingFeature: true });
+        });
+
+        test('should pass migrateAccessTokenToHeader=false to viewer options when isAccessTokenHeaderEnabled is false', () => {
+            jest.spyOn(loader, 'determineViewer').mockReturnValue(viewer);
+            jest.spyOn(preview, 'createViewerOptions');
+            preview.options.features = { existingFeature: true };
+
+            preview.prefetch({ fileId, token, sharedLink, sharedLinkPassword, preload: true });
+
+            expect(preview.createViewerOptions).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    features: { existingFeature: true, migrateAccessTokenToHeader: false },
+                }),
+            );
+            expect(preview.options.features).toEqual({ existingFeature: true });
+        });
     });
 
     describe('prefetchViewers()', () => {