我得到以下异常：
未捕获的 DOMException：无法在“范围”上执行“选择节点”：给定节点没有父节点。
在 ntselectNode (/theme/yui_combo.php?3.15.0/datatype-xml-parse/datatype-xml-parse-min.js&3.15.0/io-xdr/io-xdr-min.js&3.15.0/io-form/ io-form-min.js&3.15.0/io-upload-iframe/io-upload-iframe-min.js&3.15.0/queue-promote/queue-promote-min.js&3.15.0/io-queue/io-queue- min.js&3.15.0/event-simulate/event-simulate-min.js&m/-1/editor_atto/rangy/rangy-min.js&3.15.0/handlebars-base/handlebars-base-min.js&3.15.0/handlebars-compiler /handlebars-compiler-min.js&3.15.0/timers/timers-min.js&m/-1/editor_atto/editor/editor-min.js&m/-1/editor_atto/plugin/plugin-min.js&m/-1/atto_title/ button/button-min.js&m/-1/atto_bold/button/button-min.js&m/-1/atto_italic/button/button-min.js&m/-1/atto_unorderedlist/button/button-min.js&m/-1/ atto_orderedlist/button/button-min.js&m/-1/atto_link/button/button-min.js&m/-1/atto_image/button/button-min.js&m/-1/atto_media/button/button-min.js&m/-1/atto_managefiles/button/button- min.js&m/-1/atto_underline/button/button-min.js&m/-1/atto_strike/button/button-min.js:62:2509)