diff --git a/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/index.tsx b/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/index.tsx
index e7914b32d7..06f0610dfd 100644
--- a/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/index.tsx
+++ b/web/app/components/rag-pipeline/components/rag-pipeline-header/publisher/index.tsx
@@ -21,7 +21,7 @@ const Publisher = () => {
 
   const handleOpenChange = useCallback((newOpen: boolean) => {
     if (newOpen)
-      handleSyncWorkflowDraft()
+      handleSyncWorkflowDraft(true)
     setOpen(newOpen)
   }, [handleSyncWorkflowDraft])
 
diff --git a/web/app/components/workflow/nodes/data-source/default.ts b/web/app/components/workflow/nodes/data-source/default.ts
index e703bd2265..2f2a64f3ef 100644
--- a/web/app/components/workflow/nodes/data-source/default.ts
+++ b/web/app/components/workflow/nodes/data-source/default.ts
@@ -11,6 +11,28 @@ const metaData = genNodeMetaData({
 const nodeDefault: NodeDefault<DataSourceNodeType> = {
   metaData,
   defaultValue: {
+    fileExtensions: [
+      'txt',
+      'markdown',
+      'mdx',
+      'pdf',
+      'html',
+      'xlsx',
+      'xls',
+      'vtt',
+      'properties',
+      'doc',
+      'docx',
+      'csv',
+      'eml',
+      'msg',
+      'pptx',
+      'xml',
+      'epub',
+      'ppt',
+      'md',
+      'html',
+    ],
     datasource_parameters: {},
     datasource_configurations: {},
   },