Update src/scripts/app.ts

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

src/scripts/app.ts

@@ -1503,6 +1503,7 @@
     if (!_.isObject(data) || Array.isArray(data)) {
       return false
     }
+    if (Object.keys(data).length === 0) return false
 
     return Object.values(data).every((node) => {
       if (!node || typeof node !== 'object' || Array.isArray(node)) {
@@ -1514,8 +1515,9 @@
       return typeof classType === 'string' && inputsIsRecord
     })
   }
+  }
 
   loadApiJson(apiData: ComfyApiWorkflow, fileName: string) {
     useWorkflowService().beforeLoadNewGraph()
 
     const missingNodeTypes = Object.values(apiData).filter(
@@ -1625,7 +1627,7 @@
    * Registers a Comfy web extension with the app
    * @param {ComfyExtension} extension
    */
   registerExtension(extension: ComfyExtension) {
     useExtensionService().registerExtension(extension)
   }
 
@@ -1634,7 +1636,7 @@
    * @param canvas The canvas instance
    * @returns Array of context menu items from all extensions
    */
   collectCanvasMenuItems(canvas: LGraphCanvas): IContextMenuValue[] {
     return useExtensionService()
       .invokeExtensions('getCanvasMenuItems', canvas)
       .flat() as IContextMenuValue[]
@@ -1645,7 +1647,7 @@
    * @param node The node being right-clicked
    * @returns Array of context menu items from all extensions
    */
   collectNodeMenuItems(node: LGraphNode): IContextMenuValue[] {
     return useExtensionService()
       .invokeExtensions('getNodeMenuItems', node)
       .flat() as IContextMenuValue[]