javascript - Error context menu with jsTree -


i wanna know why when try open context menu first time good, when try use second time doesn't work, mean can use 1st time because 2nd time console sends me error:

jquery-2.2.4.min.js?_=1501245597074:4 xhr finished loading: post "http://localhost:8080/survey/json/getcategoryjson.jsp".   send @ jquery-2.2.4.min.js?_=1501245597074:4   ajax @ jquery-2.2.4.min.js?_=1501245597074:4    (anonymous) @ test.jsp:83   dispatch @ jquery-2.2.4.min.js:3    r.handle @ jquery-2.2.4.min.js:3    trigger @ jquery-2.2.4.min.js:4   triggerhandler @ jquery-2.2.4.min.js:4    trigger @ jstree.min.js:2   select_node @ jstree.min.js:3    activate_node @ jstree.min.js:3   show_contextmenu @ jstree.min.js:4   (anonymous) @ jstree.min.js:4   f @ jquery-2.2.4.min.js:2   dispatch @ jquery-2.2.4.min.js:3   r.handle @ jquery-2.2.4.min.js:3"

my jstree code this: 

$.ajax({     async: true,     type: "post",     url: "json/folderjsonname.jsp",     datatype: "json",     success: function (data) {         $.jstree.defaults.core.check_callback = true;         $.jstree.defaults.plugins = ["contextmenu"];         $('#jstree').jstree({             core: {                 data: data,              },             plugins: ["contextmenu"],             "contextmenu": {                 "items": function ($node) {                     var tree = $("#jstree").jstree(true);                     return {                         "create": {                             "separator_before": false,                             "separator_after": false,                             "label": "create",                             "action": function (obj) {                                 $node = tree.create_node($node);                                 tree.edit($node);                             }                         },                         "rename": {                             "separator_before": false,                             "separator_after": false,                             "label": "rename",                             "action": function (obj) {                                 tree.edit($node);                             }                         },                         "remove": {                             "separator_before": false,                             "separator_after": false,                             "label": "remove",                             "action": function (obj) {                                 tree.delete_node($node);                             }                         }                     };                 }             },         });     },     error: function (xhr, ajaxoptions, thrownerror) {         alert(xhr.status);         alert(thrownerror);     } });


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