Mail.ru: XSS e.mail.ru fixSpecialSymbols

Domain, site, application -- e.mail.ru Testing environment -- Firefox Steps to reproduce -- 1. send email from 2. add sender to contacts on https://e.mail.ru/messages/inbox/ 3. using Firefox go to https://e.mail.ru/compose/ 4. click on Кому: to open Contacts Actual results -- alert message Expect...