Removing a table row failed in om/react when tbody was missing.

om-table.clj

(ns om-table.core
  (:require [om.core :as om :include-macros true]
            [om.dom :as dom :include-macros true]))
(enable-console-print!)

(extend-type string
  ICloneable
  (-clone [n] (js/String. n)))

(def app-state (atom {:table ["very" "undefined" "such" "parentNode"]}))

(defn table-row [text owner]
  (prn text)
  (om/component
   (dom/tr nil
           (dom/td nil (om/value text)))))

(defn table-test [rows owner]
  (om/component
   (dom/table
    nil
    ;; the code breaks if tbody is omitted, since this node is 
    ;; implicitly inserted by the browser if missing, causing the 
    ;; react diff (or otherwise inside of react) to throw an error
    (dom/tbody nil
     (om/build-all table-row rows)))))

(defn remove-first [rows]
  (om/update! rows 
              #(into [] (drop 1 %))))

(om/root
 app-state
 (fn [{:keys [table]} owner]
   (reify
     om/IRender
     (render [_]
       (dom/div nil
                (om/build table-test table)
                (dom/button #js {:onClick #(remove-first table)} "Remove")))))
 (.getElementById js/document "content"))