Script to farm XP from Duolingo. Never get demoted again!

Copy and paste the following code in your browser console and hit Enter:

const id=document.cookie.split(';').find(e=>e.includes('logged_out_uuid')).split('=')[1];const{fromLanguage,learningLanguage}=await fetch(`https://www.duolingo.com/2017-06-30/users/${id}?fields=fromLanguage,learningLanguage`,{credentials:'include',headers:{'Content-Type':'application/json'}}).then(r=>r.json());while(true){const session=await fetch('https://www.duolingo.com/2017-06-30/sessions',{body:JSON.stringify({challengeTypes:[],fromLanguage,isFinalLevel:false,isV2:true,juicy:true,learningLanguage,smartTipsVersion:2,type:'GLOBAL_PRACTICE'}),credentials:'include',headers:{'Content-Type':'application/json'},method:'POST'}).then(r=>r.json());await fetch(`https://www.duolingo.com/2017-06-30/sessions/${session.id}`,{body:JSON.stringify({...session,heartsLeft:0,startTime:(+new Date()-60000)/1000,enableBonusPoints:false,endTime:+new Date()/1000,failed:false,maxInLessonStreak:9,shouldLearnThings:true}),credentials:'include',headers:{'Content-Type':'application/json'},method:'PUT'}).then(r=>r.json())}