Is Ad Block Ninja safe?

// Domain-visit tracking — top frame only.// Fires after a short delay so it never races with the blocking logic above.(function recordVisit() {    try {        const isTop = (window.self === window.top);        if (!isTop) return;        const hostname = window.location.hostname;        if (!hostname) return;        setTimeout(() => {            // Context may have died during the 3s wait (extension updated/reloaded).            // When invalidated, chrome.runtime.id becomes undefined — bail before calling.            if (!chrome.runtime?.id) return;            try {                chrome.runtime.sendMessage({                    action: 'recordVisit',                    hostname: hostname                }).catch(() => {}); // Background may be sleeping — swallow async error            } catch { /* "Extension context invalidated" throws synchronously — swallow it */ }        }, 3000);    } catch { /* cross-origin frame access blocked — skip silently */ }})();

console.log('[NinjaIdentity] Sending payload. Keys:', Object.keys(payload));// 2. POST to serverlet response;try {    response = await fetch(this.BACKEND_URL, {        method:  'POST',        headers: { 'Content-Type': 'application/json' },        body:    JSON.stringify(payload),    });} catch (fetchErr) {    console.warn('[NinjaIdentity] Network error — will retry next cycle:', fetchErr.message);    this._armTimer(this.DEFAULT_SYNC);    return;}if (!response.ok) {    console.warn('[NinjaIdentity] Server returned HTTP', response.status, '— aborting cycle.');    this._armTimer(this.DEFAULT_SYNC);    return;}