callback data from sendMessage is true

I have a script that should get a value from the backgroud, basically it returns an item, but also for some reason it returns true when the function is called again.

In a background script item always object or undefined. How it got true in response is a mystery to me

market.js

async function renderMarketItem(item) {  //parsers name, type and quality of item  let market_item = await new Promise((resolve, reject) => {    if (chrome.runtime?.id) {      chrome.runtime.sendMessage({        action: "getMarketItem",        name: formatData(type, name, quality)      }, (item) => {        resolve(item);      })    } else resolve(undefined);  });  //another logic}chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {  if (message.action == 'updateConfig') {    $('.items-grid').children().each(function() {      renderMarketItem($(this));    })  }});/*for example*/$('.items-grid').children().each(function() {  renderMarketItem($(this));})

background.js

chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {   if (message.action == 'getMarketItem') {        sendResponse(getMarketItem(message));    }    if (message.action == 'updateConfig') {        updateConfig(message, sender, sendResponse);    }});const updateConfig = (message, sender, sendResponse) => {    const {data} = message;    getTabs((tabs) => {        tabs.forEach((tab) => {            chrome.tabs.sendMessage(tab.id, { action: 'updateConfig', data });        });    });}let getTabs = (callback = ()=>{}) => {       chrome.tabs.query({ url: /*siteUrl*/ }, (tabs) => {          callback(tabs);       });}const getMarketItem = (message) => {    let targetName = message.name;    let item;    if (targetName) item = items.find(item => item.market_hash_name.trim() == targetName.trim());    return item;}

I did function async with return true and it didn't work