дождитесь загрузки элемента
function waitForElementLoad(selector) {
return new Promise((resolve, reject) => {
let el = document.querySelector(selector);
if (el) {
resolve(el);
return;
}
new MutationObserver((mutationRecords, observer) => {
// Query for elements matching the specified selector
Array.from(document.querySelectorAll(selector)).forEach((element) => {
resolve(element);
//Once we have resolved we don't need the observer anymore.
observer.disconnect();
});
}).observe(document.documentElement, {
childList: true,
subtree: true,
});
});
}
Ever Dev
