From a3f6cfc531472bd1b4f9ff77db45efce2e2bba7a Mon Sep 17 00:00:00 2001
From: dev-donghwan <ycdoit@naver.com>
Date: Wed, 30 Sep 2026 15:44:21 +0900
Subject: [PATCH] [ZEPPELIN-6632] Pass the ipynb extension without a leading
 dot when exporting a note

---
 .../websocket/websocket-event.factory.js       |  2 +-
 .../websocket/websocket-event.factory.test.js  | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/zeppelin-web/src/components/websocket/websocket-event.factory.js b/zeppelin-web/src/components/websocket/websocket-event.factory.js
index befd5b45bd5..61ef7fd45cf 100644
--- a/zeppelin-web/src/components/websocket/websocket-event.factory.js
+++ b/zeppelin-web/src/components/websocket/websocket-event.factory.js
@@ -202,7 +202,7 @@ function WebsocketEventFactory($rootScope, $websocket, $location, baseUrlSrv, sa
     } else if (op === 'PARAS_INFO') {
       $rootScope.$broadcast('updateParaInfos', data);
     } else if (op === 'CONVERTED_NOTE_NBFORMAT') {
-      saveAsService.saveAs(data.nbformat, data.noteName, '.ipynb');
+      saveAsService.saveAs(data.nbformat, data.noteName, 'ipynb');
     } else if (op === 'INTERPRETER_INSTALL_STARTED') {
       ngToast.info(data.message);
     } else if (op === 'INTERPRETER_INSTALL_RESULT') {
diff --git a/zeppelin-web/src/components/websocket/websocket-event.factory.test.js b/zeppelin-web/src/components/websocket/websocket-event.factory.test.js
index 1d95f639802..c7e9c22d8fb 100644
--- a/zeppelin-web/src/components/websocket/websocket-event.factory.test.js
+++ b/zeppelin-web/src/components/websocket/websocket-event.factory.test.js
@@ -20,6 +20,7 @@ describe('Factory: websocketEvents', function() {
   let messageCallback;
   let ngToast;
   let rootScope;
+  let saveAsService;
   let websocketEvents;
 
   beforeEach(function() {
@@ -34,6 +35,7 @@ describe('Factory: websocketEvents', function() {
       socket: {readyState: 1},
     };
     ngToast = {info: jasmine.createSpy('info')};
+    saveAsService = {saveAs: jasmine.createSpy('saveAs')};
 
     angular.mock.module('zeppelinWebApp', function($provide) {
       $provide.value('$websocket', function() {
@@ -42,7 +44,7 @@ describe('Factory: websocketEvents', function() {
       $provide.value('baseUrlSrv', {getWebsocketUrl: function() {
         return 'ws://localhost/ws';
       }});
-      $provide.value('saveAsService', {saveAs: angular.noop});
+      $provide.value('saveAsService', saveAsService);
       $provide.value('ngToast', ngToast);
     });
   });
@@ -91,4 +93,18 @@ describe('Factory: websocketEvents', function() {
     expect(console.log).toHaveBeenCalledWith('Receive << %o', 'NOTICE');
     expect(JSON.stringify(console.log.calls.allArgs())).not.toContain(payloadSecret);
   });
+
+  it('passes the ipynb extension without a leading dot when saving a converted note', function() {
+    const nbformat = '{"cells": []}';
+
+    messageCallback({
+      data: JSON.stringify({
+        op: 'CONVERTED_NOTE_NBFORMAT',
+        data: {nbformat: nbformat, noteName: 'test sh'},
+      }),
+    });
+
+    // saveAsService.saveAs() joins the file name and the extension with a dot itself
+    expect(saveAsService.saveAs).toHaveBeenCalledWith(nbformat, 'test sh', 'ipynb');
+  });
 });