import _ from 'lodash' ; import { verifyPrompt } from '../shared/verify.js' ; import { overlay } from '../shared/elements.js' ; export function disconnect ( reason ) { if ( _ . isNull ( overlay ) ) return ; overlay . style . display = 'block' ; const msg = document . getElementById ( 'msg' ) ; if ( ! _ . isUndefined ( reason ) && ! _ . isNull ( msg ) ) msg . innerHTML = reason ; window . removeEventListener ( 'beforeunload' , verifyPrompt , false ) ; }