Fix: Print reject error when ActionButton catch promise rejects

components/modal/ActionButton.tsx

@@ -56,7 +56,9 @@ export default class ActionButton extends React.Component<ActionButtonProps, Act
             // this.setState({ loading: false });
             closeModal(...args);
           },
-          () => {
+          (e: Error) => {
+            // Emit error when catch promise reject
+            console.error(e);
             // See: https://github.com/ant-design/ant-design/issues/6183
             this.setState({ loading: false });
           },

components/modal/__tests__/confirm.test.js

@@ -67,6 +67,19 @@ describe('Modal.confirm triggers callbacks correctly', () => {
     expect(errorSpy).not.toHaveBeenCalled();
   });
 
+  it('should emit error when onOk return Promise.reject', () => {
+    const error = new Error('something wrong');
+    open({
+      onOk: () => Promise.reject(error),
+    });
+    // Fifth Modal
+    $$('.ant-btn-primary')[0].click();
+    // wait promise
+    return Promise.resolve().then(() => {
+      expect(errorSpy).toHaveBeenCalledWith(error);
+    });
+  });
+
   if (process.env.REACT !== '15') {
     it('shows animation when close', () => {
       jest.useFakeTimers();