nvue中使用RAS加密引入jsencrypt报错

reportJSException >>>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->Exception: TypeError: undefined is not an object (evaluating 'navigator.appName')
16:59:06.520 weex createInstanceContext:5756:24
16:59:06.549 weex createInstanceContext:3135:18
16:59:06.570 weex createInstanceContext:3137:3
16:59:06.594 weex createInstanceContext:8503:34
16:59:06.614 webpack_require@weex createInstanceContext:138:34
16:59:06.635 weex createInstanceContext:2995:180
16:59:06.656 weex createInstanceContext:3105:34
16:59:06.676 webpack_require@weex createInstanceContext:138:34
16:59:06.697 weex createInstanceContext:221:34
16:59:06.717 __webpack_require__@weex createInstanceContext:138:34
16:59:06.737 weex createInstanceContext:202:37
16:59:06.758 global code@weex createInstanceContext:203:12
16:59:06.799 getTemplateInfo== template md5 a8f1e3b4edef1ba996284e10076cd936 length 953673 base64 md5 qPHjtO3vG6mWKE4QB2zZNg== response header {"templateSourceBase64MD5":["qPHjtO3vG6mWKE4QB2zZNg=="],"templateSourceMD5":["a8f1e3b4edef1ba996284e10076cd936"]}