Why does a JavaScript chat modify title tags?
Many customer support widgets (Intercom, Drift, LiveChat, etc.) inject their code into every page of the site. Some of these scripts manipulate the DOM to display notifications or change the browser tab when a message arrives.
Specifically? The script detects a new event, intercepts the original
, and adds a prefix like "(1) New message – Your page title". The problem is: <strong>Googlebot executes JavaScript</strong>. If the script loads before the bot captures the final render, it's this rewritten version that ends up in the index.</p><h3>Does Googlebot simulate user interactions to trigger these scripts?</h3><p>No. And that’s at the heart of Splitt's recommendation. Googlebot <strong>does not interact</strong> with buttons, scrolls, or clicks. It loads the page, executes the JS that triggers automatically, waits a few seconds, and then captures the state of the DOM.</p><p>If your chat appears automatically on load, its code runs. If it waits for user click to initialize, <strong>Googlebot never sees it</strong>. This is a crucial technical distinction for all embedded third-party tools.</p><h3>What are the concrete risks for SEO?</h3><p>Imagine your carefully optimized <title> becomes "(2) Chat open – Your brand | Strategic keyword". Google indexes this corrupted version. The result: <strong>plummeting click-through rates</strong> in the SERPs, as the displayed title no longer makes sense.</p><p>Even worse: if the script randomly modifies the title based on sessions, Google can observe <strong>inconsistent variations</strong> between its successive crawls. This weakens the topical relevance signals you send to the search engine.</p><ul><li><strong>Systematic audit</strong>: check the JS rendering of your strategic pages in Search Console (URL Inspection > Crawled version)</li><li><strong>Monitoring</strong>: compare the <title> source HTML vs the rendered final <title> in your JS crawling tool</li><li><strong>Third-party configuration</strong>: review all third-party scripts that affect the DOM, especially those that display notifications or modify the UI</li><li><strong>Conditional lazy-loading</strong>: force non-critical widgets to initialize only on user interaction</li><li><strong>Regular testing</strong>: after each deployment or update of a third-party tool, re-check the Googlebot rendering</li></ul></div>
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<h2>SEO Expert opinion</h2>
<div class="content" data-field="ai_expert_opinion"><h3>Is this recommendation consistent with what we observe in the field?</h3><p>Yes, and it confirms dozens of documented cases where <strong>polluted titles</strong> ended up in the index. The classic pattern: an e-commerce site deploys a chat, three weeks later the titles of product sheets display "(!) Limited offer" added by the marketing script.</p><p>What’s interesting is that Splitt does not say "fix your JavaScript code". He offers a <strong>UX workaround</strong>: delay the display until a human action occurs. It’s pragmatic, but it highlights a structural weakness in the JS ecosystem.</p><h3>What blind spots remain in this statement?</h3><p>Splitt does not specify <strong>how long</strong> Googlebot waits after the initial load before capturing the DOM. We know there is a timeout (a few seconds), but if your script modifies the title 2 seconds after DOMContentLoaded, is it too late or too early? <strong>[To be verified]</strong> on real cases with varied delays.</p><p>Another blind spot: what happens if the script detects a <strong>Googlebot user-agent</strong> and behaves differently? Technically, that’s cloaking. But in practice, some widgets disable their functionalities for bots. Does Google tolerate this gray area? No official response on that.</p><h3>In what cases does this rule not apply?</h3><p>If your site uses <strong>server-side rendering</strong> (SSR) with a framework like Next.js or Nuxt, the <title> is already fixed in the HTML sent to the bot. Client scripts can modify the DOM later, but Googlebot has already captured the server version.</p><p>The same goes for sites using <strong>static prerendering</strong>: if you generate complete HTML files during build, the problem disappears. This is an additional reason to favor these architectures when SEO is critical.</p><div class="alert"><strong>Note</strong>: some headless CMSs + modern JS frameworks inject the <title> on the client side via a metadata manager (react-helmet, vue-meta). Make sure these tools inject the tags <strong>before</strong> any third-party scripts trigger; otherwise, you fall back into the same trap.</div></div>
</div>
<div class="section-card ai-section">
<h2>Practical impact and recommendations</h2>
<div class="content" data-field="ai_practical_impact"><h3>How to quickly audit your at-risk pages?</h3><p>Start with a <strong>JS crawl using Screaming Frog</strong> or Oncrawl in "JavaScript Rendering" mode. Compare the "Title 1" column (source HTML) with the rendered title. Any divergence is a warning sign.</p><p>Next, use the <strong>URL Inspection tool</strong> from Search Console. Select a strategic page, click on "Test live URL", then check the "Rendered HTML" tab. Look for the <title> in the code: that’s what Google sees. If you spot strange prefixes ("(1)", "New!", etc.), you’ve found your culprit.</p><h3>What technical solution should be implemented concretely?</h3><p>The simplest one: <strong>condition the loading of the widget</strong> to a user event (click, scroll to 50%, 10 seconds of inactivity). Most chat tools provide this option in their advanced settings.</p><p>If you’re coding it yourself, use a pattern like <code>window.addEventListener('scroll', loadChat, { once: true })</code>. The script initializes only after a first scroll. Since Googlebot never scrolls, it never executes the code that affects the <title>.</p><p>For high-volume sites, automate monitoring with a <strong>monitoring script</strong>: crawl daily a sample of pages, extract the rendered <title>, compare with a baseline, and alert if there’s a divergence. This allows you to detect a regression before it impacts indexing.</p><h3>Should all third-party tools embedded on the site be reviewed?</h3><p>Yes, and not just chat widgets. <strong>Poorly configured tag managers</strong>, cookie consent popups, A/B testing tools, promotional banners… Any script that manipulates the DOM post-load is suspect.</p><p>Create a complete inventory: list all loaded scripts, identify their trigger (auto, interaction, delay), and check if they affect the <strong><title></strong>, <strong><meta description></strong>, or <strong><h1></strong> tags. Prioritize corrections on high-traffic organic pages.</p><p>These optimizations require rigorous <strong>technical coordination</strong> among front-end, marketing, and SEO teams. If your team lacks resources or advanced JS expertise, hiring a specialized SEO agency can accelerate diagnosis and ensure compliance without breaking the UX or conversions.</p><ul class="checklist"><li>Crawl the site in JavaScript rendering mode and compare HTML titles vs rendered titles</li><li>Use the URL Inspection of Search Console to check Googlebot rendering on key pages</li><li>Configure third-party widgets to load only after user interaction (scroll, click)</li><li>Audit all scripts that modify the DOM post-load (chat, A/B testing, popups, analytics)</li><li>Set up automated monitoring to detect title regressions</li><li>Prioritize SSR or static prerendering for SEO-critical sites</li></ul><div class="summary">JavaScript modifications of <strong>title tags</strong> represent a silent but devastating issue. Delaying the display of third-party widgets until user interaction often suffices to eliminate it, as Googlebot simulates no human action. Audit, monitor, and test systematically after each update.</div></div>
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<details class="faq-item">
<summary class="faq-question">Googlebot exécute-t-il vraiment tout le JavaScript de mes pages ?</summary>
<div class="faq-answer">Oui, Googlebot utilise un moteur de rendu basé sur Chromium et exécute le JS qui se déclenche automatiquement au chargement. En revanche, il n'interagit pas avec la page (pas de clic, scroll, ni saisie).</div>
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<summary class="faq-question">Comment savoir si mon chat JavaScript modifie le title indexé par Google ?</summary>
<div class="faq-answer">Utilise l'outil Inspection d'URL de la Search Console, section « HTML rendu ». Compare le <title> affiché avec celui de ton code source. Tout ajout de préfixe ou suffixe suspect indique une modification côté client.</div>
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<summary class="faq-question">Est-ce du cloaking de désactiver un script pour Googlebot uniquement ?</summary>
<div class="faq-answer">Techniquement oui, si tu modifies le comportement en fonction du user-agent. Google tolère certaines optimisations (lazy-load d'images), mais désactiver un script qui change le contenu indexable reste une zone grise risquée.</div>
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<summary class="faq-question">Le SSR résout-il définitivement ce problème de title modifié ?</summary>
<div class="faq-answer">Oui, si le <title> est rendu côté serveur, Googlebot reçoit la version correcte dès le HTML initial. Les scripts client peuvent modifier le DOM ensuite, mais le bot a déjà capturé la bonne balise.</div>
</details>
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<summary class="faq-question">Quels autres éléments HTML peuvent être corrompus par JavaScript ?</summary>
<div class="faq-answer">Les <meta description>, <h1>, balises canoniques, et structured data injectés côté client. Tout élément critique SEO géré en JS risque d'être indexé dans une version modifiée ou absente si le script plante.</div>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">John Mueller</span> </span>
<span class="footer-popular-text">Pourquoi personne ne peut vraiment maîtriser le SEO à 100% ?</span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">John Mueller</span> </span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">Martin Splitt</span> </span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">Gary Illyes</span> </span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">Martin Splitt</span> </span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">Gary Illyes</span> </span>
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<span class="footer-popular-date">Apr 2026</span> <span class="footer-popular-speaker">Gary Illyes</span> </span>
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"Search Engine Optimization",
"Google Search",
"Core Web Vitals",
"Technical SEO",
"Content SEO",
"Link building",
"Structured data",
"AI search optimization"
],
"sameAs": []
}
]
}</script>
<!-- ==================== CHATBOT WIDGET ==================== -->
<button id="cbw-launcher" type="button" aria-label="Ask the SEO assistant a question" title="Ask the SEO assistant a question">
<svg viewBox="0 0 24 24" width="26" height="26" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
<path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path>
</svg>
<span class="cbw-launcher-label">SEO Assistant</span>
<span class="cbw-launcher-pulse" aria-hidden="true"></span>
</button>
<div id="cbw-panel" role="dialog" aria-label="SEO Assistant" aria-hidden="true">
<div class="cbw-head">
<div class="cbw-head-txt">
<strong>SEO Assistant</strong>
<span>Powered by official Google declarations</span>
</div>
<div class="cbw-head-actions">
<a href="https://seoclaims.com/en/chatbot" class="cbw-icon-btn" title="Open full version" aria-label="Open full version">
<svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round"><path d="M15 3h6v6"></path><path d="M10 14L21 3"></path><path d="M21 14v5a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5"></path></svg>
</a>
<button type="button" id="cbw-close" class="cbw-icon-btn" title="Close" aria-label="Close">
<svg viewBox="0 0 24 24" width="20" height="20" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round"><path d="M18 6L6 18"></path><path d="M6 6l12 12"></path></svg>
</button>
</div>
</div>
<div class="cbw-body" id="cbw-messages" aria-live="polite">
<div class="cbw-msg assistant cbw-welcome">Hi! Ask me anything about SEO and Google — I answer with cited sources from official declarations.</div>
</div>
<form class="cbw-form" id="cbw-form" autocomplete="off">
<textarea id="cbw-input" rows="1" placeholder="Ask a question..." maxlength="500" required></textarea>
<button type="submit" id="cbw-send" aria-label="Send">
<svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" stroke-linejoin="round"><line x1="22" y1="2" x2="11" y2="13"></line><polygon points="22 2 15 22 11 13 2 9 22 2"></polygon></svg>
</button>
</form>
</div>
<style>
#cbw-launcher {
position: fixed; bottom: 24px; right: 24px; z-index: 9998;
display: flex; align-items: center; gap: 8px;
padding: 14px 20px 14px 16px;
background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
color: #fff; border: none; border-radius: 999px;
box-shadow: 0 8px 24px rgba(124,58,237,.35);
font-family: inherit; font-size: .93rem; font-weight: 600;
cursor: pointer; transition: transform .15s ease, box-shadow .15s ease;
}
#cbw-launcher:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(124,58,237,.45); }
#cbw-launcher svg { flex-shrink: 0; }
.cbw-launcher-label { white-space: nowrap; }
.cbw-launcher-pulse {
position: absolute; top: -2px; right: -2px; width: 12px; height: 12px;
background: #10b981; border: 2px solid #fff; border-radius: 50%;
animation: cbwPulse 2s infinite;
}
@keyframes cbwPulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.3); opacity: .7; } }
#cbw-panel {
position: fixed; bottom: 24px; right: 24px; z-index: 9999;
width: 400px; max-width: calc(100vw - 32px);
height: 560px; max-height: calc(100vh - 48px);
background: #fff; border-radius: 16px;
box-shadow: 0 20px 60px rgba(0,0,0,.2);
display: grid; grid-template-rows: auto 1fr auto; overflow: hidden;
transform: translateY(20px) scale(.96); opacity: 0; pointer-events: none;
transition: transform .22s ease, opacity .22s ease;
font-family: inherit;
}
#cbw-panel[aria-hidden="false"] { transform: translateY(0) scale(1); opacity: 1; pointer-events: auto; }
#cbw-panel[aria-hidden="false"] ~ #cbw-launcher,
body.cbw-open #cbw-launcher { opacity: 0; pointer-events: none; transform: scale(.8); }
.cbw-head {
display: flex; align-items: center; justify-content: space-between;
padding: 14px 16px; background: linear-gradient(135deg, #7c3aed, #5b21b6); color: #fff;
}
.cbw-head-txt strong { display: block; font-size: .97rem; line-height: 1.2; }
.cbw-head-txt span { display: block; font-size: .75rem; opacity: .85; margin-top: 2px; }
.cbw-head-actions { display: flex; gap: 6px; }
.cbw-icon-btn {
width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center;
background: rgba(255,255,255,.12); color: #fff; border: none; border-radius: 8px;
cursor: pointer; text-decoration: none; transition: background .15s;
}
.cbw-icon-btn:hover { background: rgba(255,255,255,.22); }
.cbw-body {
flex: 1; overflow-y: auto; padding: 16px;
display: flex; flex-direction: column; gap: 12px;
background: #fafafa;
}
.cbw-msg {
max-width: 92%; padding: 10px 14px; border-radius: 12px;
font-size: .9rem; line-height: 1.55; animation: cbwIn .2s ease-out;
}
@keyframes cbwIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.cbw-msg.user { align-self: flex-end; background: linear-gradient(135deg, #1a73e8, #1557b0); color: #fff; border-bottom-right-radius: 3px; }
.cbw-msg.assistant { align-self: flex-start; background: #fff; border: 1px solid #e2e8f0; border-bottom-left-radius: 3px; color: #1e293b; }
.cbw-msg.assistant.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.cbw-msg.cbw-welcome { background: linear-gradient(135deg, #f3e8ff, #ede9fe); border-color: #c4b5fd; color: #5b21b6; }
.cbw-citation { display: inline-block; background: #ede9fe; color: #5b21b6; font-size: .75rem; font-weight: 700; padding: 0 6px; border-radius: 8px; margin: 0 2px; text-decoration: none; vertical-align: 1px; }
.cbw-hint { display: inline-block; background: #fef3c7; color: #92400e; font-style: normal; font-size: .82rem; padding: 1px 7px; border-radius: 6px; margin-left: 4px; font-weight: 500; }
.cbw-citation:hover { background: #ddd6fe; }
.cbw-sources { margin-top: 10px; padding-top: 9px; border-top: 1px dashed #cbd5e1; }
.cbw-sources-title { font-size: .7rem; text-transform: uppercase; letter-spacing: .4px; font-weight: 700; color: #64748b; margin-bottom: 6px; }
.cbw-src {
display: block; padding: 8px 10px; background: #fff;
border: 1px solid #e2e8f0; border-left: 3px solid #7c3aed; border-radius: 6px;
margin-bottom: 5px; font-size: .78rem; color: inherit; text-decoration: none;
transition: transform .12s;
}
.cbw-src:hover { transform: translateX(2px); border-color: #7c3aed; }
.cbw-src strong { display: block; color: #1e293b; margin-bottom: 1px; font-size: .8rem; line-height: 1.3; }
.cbw-src .cbw-src-meta { color: #64748b; font-size: .7rem; }
.cbw-src .cbw-src-id { display: inline-block; background: #ede9fe; color: #5b21b6; font-family: monospace; font-size: .68rem; font-weight: 700; padding: 0 5px; border-radius: 4px; margin-right: 4px; }
.cbw-typing { display: flex; gap: 4px; padding: 10px 14px; }
.cbw-typing span { width: 7px; height: 7px; border-radius: 50%; background: #7c3aed; opacity: .5; animation: cbwTyping 1.2s infinite; }
.cbw-typing span:nth-child(2) { animation-delay: .15s; }
.cbw-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes cbwTyping { 0%,80%,100% { transform: scale(.7); opacity: .4; } 40% { transform: scale(1); opacity: 1; } }
.cbw-form {
display: flex; gap: 8px; padding: 12px; background: #fff; border-top: 1px solid #e2e8f0;
}
.cbw-form textarea {
flex: 1; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 10px;
font-size: .9rem; font-family: inherit; resize: none;
min-height: 40px; max-height: 110px; outline: none; transition: border-color .15s;
}
.cbw-form textarea:focus { border-color: #7c3aed; box-shadow: 0 0 0 3px rgba(124,58,237,.12); }
.cbw-form button {
width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
background: linear-gradient(135deg, #7c3aed, #5b21b6); color: #fff;
border: none; border-radius: 10px; cursor: pointer; flex-shrink: 0;
}
.cbw-form button:disabled { opacity: .5; cursor: not-allowed; }
@media (max-width: 640px) {
#cbw-launcher { bottom: 16px; right: 16px; padding: 12px 16px 12px 14px; font-size: .85rem; }
.cbw-launcher-label { display: none; }
#cbw-launcher { padding: 14px; }
#cbw-panel {
top: 0; bottom: 0; left: 0; right: 0;
width: 100vw; max-width: 100vw;
/* dvh = dynamic viewport height : se reduit quand le clavier mobile s'ouvre */
/* fallback vh pour navigateurs tres anciens */
height: 100vh; height: 100dvh;
max-height: 100vh; max-height: 100dvh;
border-radius: 0;
}
/* Laisse le clavier rogner l'espace du body, pas de la frame entiere */
.cbw-body { overscroll-behavior: contain; }
}
@media print { #cbw-launcher, #cbw-panel { display: none !important; } }
</style>
<script>
(function() {
const LANG = "en";
const T = {"sending":"...","send":"Send","sources":"Sources","rate_limit":"Limit of 10 questions per hour reached.","error":"Error. Please try again.","too_short":"Question too short."};
const launcher = document.getElementById('cbw-launcher');
const panel = document.getElementById('cbw-panel');
const closeBtn = document.getElementById('cbw-close');
const msgsEl = document.getElementById('cbw-messages');
const formEl = document.getElementById('cbw-form');
const inputEl = document.getElementById('cbw-input');
const sendBtn = document.getElementById('cbw-send');
// Sync panel height to the visual viewport (keyboard-aware) sur mobile
// Necessaire car Chrome Android n'honore pas toujours 100dvh correctement
// quand le clavier virtuel s'ouvre : la panel reste a 100vh et le contenu
// du haut est pousse hors ecran.
function syncViewport() {
if (!window.visualViewport) return;
if (panel.getAttribute('aria-hidden') !== 'false') return;
if (window.innerWidth > 640) { panel.style.height = ''; return; }
panel.style.height = window.visualViewport.height + 'px';
}
function open() {
panel.setAttribute('aria-hidden', 'false');
document.body.classList.add('cbw-open');
syncViewport();
if (window.visualViewport) {
window.visualViewport.addEventListener('resize', syncViewport);
window.visualViewport.addEventListener('scroll', syncViewport);
}
// Afficher le message de bienvenue au chargement
msgsEl.scrollTop = 0;
setTimeout(() => inputEl.focus(), 200);
}
function close() {
panel.setAttribute('aria-hidden', 'true');
document.body.classList.remove('cbw-open');
panel.style.height = '';
if (window.visualViewport) {
window.visualViewport.removeEventListener('resize', syncViewport);
window.visualViewport.removeEventListener('scroll', syncViewport);
}
}
launcher.addEventListener('click', open);
closeBtn.addEventListener('click', close);
document.addEventListener('keydown', e => { if (e.key === 'Escape' && panel.getAttribute('aria-hidden') === 'false') close(); });
function esc(s) { return String(s).replace(/[&<>"']/g, c => ({'&':'&','<':'<','>':'>','"':'"',"'":'''}[c])); }
function renderAnswer(answer, sources, queryId) {
const byId = {}; (sources || []).forEach(s => { byId[s.id] = s; });
let html = esc(answer).replace(/\[#(\d+)\]/g, (m, id) => {
const s = byId[id]; if (!s) return '';
return '<a class="cbw-citation" href="' + esc(s.url) + '" target="_blank" rel="noopener" data-qid="' + (queryId||0) + '" data-sid="' + id + '" data-kind="citation">#' + id + '</a>';
});
// Markdown italique *texte* -> <em>texte</em> (non greedy, non multiligne)
html = html.replace(/\*([^*\n]+?)\*/g, '<em class="cbw-hint">$1</em>');
return html.replace(/\n/g, '<br>');
}
function renderSources(sources, queryId) {
if (!sources || !sources.length) return '';
let out = '<div class="cbw-sources"><div class="cbw-sources-title">' + esc(T.sources) + '</div>';
sources.forEach(s => {
const meta = [s.speaker, s.date].filter(Boolean).join(' · ');
out += '<a class="cbw-src" href="' + esc(s.url) + '" target="_blank" rel="noopener" data-qid="' + (queryId||0) + '" data-sid="' + s.id + '" data-kind="source_card">' +
'<strong><span class="cbw-src-id">#' + s.id + '</span>' + esc(s.title || '') + '</strong>' +
'<div class="cbw-src-meta">' + meta + '</div></a>';
});
return out + '</div>';
}
// Beacon de clic : non bloquant, n'empeche pas la navigation
function logClick(qid, sid, kind) {
if (!qid || !sid) return;
const payload = JSON.stringify({ query_id: qid, source_id: sid, kind });
try {
if (navigator.sendBeacon) {
navigator.sendBeacon('/api/chatbot-click', new Blob([payload], {type: 'application/json'}));
} else {
fetch('/api/chatbot-click', {
method: 'POST',
headers: {'Content-Type':'application/json'},
body: payload,
keepalive: true
}).catch(() => {});
}
} catch (e) {}
}
// Delegation d'evenement sur le conteneur messages
msgsEl.addEventListener('click', function(e) {
const a = e.target.closest('a[data-qid][data-sid]');
if (!a) return;
logClick(parseInt(a.dataset.qid, 10), parseInt(a.dataset.sid, 10), a.dataset.kind || 'source_card');
});
function addUserMsg(txt) {
const d = document.createElement('div');
d.className = 'cbw-msg user';
d.innerHTML = esc(txt).replace(/\n/g, '<br>');
msgsEl.appendChild(d); scroll();
}
function addBot(data, isError) {
const d = document.createElement('div');
d.className = 'cbw-msg assistant' + (isError ? ' error' : '');
if (typeof data === 'string') d.innerHTML = esc(data);
else {
const qid = data.query_id || 0;
d.innerHTML = renderAnswer(data.answer || '', data.sources || [], qid) + renderSources(data.sources || [], qid);
}
msgsEl.appendChild(d);
// Pas de scroll : on laisse l'utilisateur sur sa question, il scrolle lui-meme pour lire la reponse
}
function showTyping() {
const d = document.createElement('div');
d.className = 'cbw-msg assistant'; d.id = 'cbw-typing';
d.innerHTML = '<div class="cbw-typing"><span></span><span></span><span></span></div>';
msgsEl.appendChild(d);
// Pas de scroll sur l'indicateur de frappe non plus
}
function hideTyping() { const t = document.getElementById('cbw-typing'); if (t) t.remove(); }
function scroll() { msgsEl.scrollTop = msgsEl.scrollHeight; }
async function ask(question, origin) {
origin = origin || 'widget';
addUserMsg(question);
inputEl.value = ''; inputEl.style.height = 'auto';
sendBtn.disabled = true; showTyping();
try {
const resp = await fetch('/api/chatbot', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ question, lang: LANG, referer: window.location.pathname, origin })
});
hideTyping();
const data = await resp.json();
if (!resp.ok) {
addBot(data.error === 'rate_limit' ? T.rate_limit : T.error, true);
} else {
addBot(data, false);
}
} catch (e) {
hideTyping(); addBot(T.error, true);
} finally {
sendBtn.disabled = false; inputEl.focus();
}
}
// API publique pour declencher le chatbot depuis d'autres pages
// Usage : window.ChatbotSEO.ask("Ma question", "search_fallback")
window.ChatbotSEO = {
open,
close,
ask: function(question, origin) {
if (!question || question.length < 3) return;
open();
// Laisser l'animation d'ouverture se lancer puis envoyer
setTimeout(() => ask(question, origin || 'search_fallback'), 350);
}
};
inputEl.addEventListener('input', function() {
this.style.height = 'auto';
this.style.height = Math.min(this.scrollHeight, 110) + 'px';
});
inputEl.addEventListener('keydown', function(e) {
if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); formEl.requestSubmit(); }
});
formEl.addEventListener('submit', function(e) {
e.preventDefault();
const q = inputEl.value.trim();
if (q.length < 3) { addBot(T.too_short, true); return; }
ask(q);
});
})();
</script>
<nav class="mobile-nav" aria-label="Mobile navigation">
<a href="/en/" class="mobile-nav-item">
<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><path d="m21 21-4.3-4.3"/></svg>
<span>Search</span>
</a>
<a href="/en/declarations" class="mobile-nav-item">
<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="7" height="7"/><rect x="14" y="3" width="7" height="7"/><rect x="3" y="14" width="7" height="7"/><rect x="14" y="14" width="7" height="7"/></svg>
<span>Categories</span>
</a>
<a href="/en/?browse=1&sort=date_desc" class="mobile-nav-item">
<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><polyline points="12 6 12 12 16 14"/></svg>
<span>Recent</span>
</a>
<a href="/" class="mobile-nav-item mobile-nav-lang">
<svg width="22" height="16" viewBox="0 0 640 480">
<rect width="213" height="480" fill="#002654"/><rect x="213" width="214" height="480" fill="#fff"/><rect x="427" width="213" height="480" fill="#ce1126"/>
</svg>
<span>FR</span>
</a>
</nav>
<!-- Lightbox (self-contained) -->
<div id="lightbox" style="display:none;position:fixed;inset:0;z-index:99999;background:rgba(0,0,0,.9);align-items:center;justify-content:center;padding:16px;cursor:zoom-out;" onclick="closeLightbox()">
<button onclick="closeLightbox();event.stopPropagation();" style="position:absolute;top:12px;right:16px;z-index:100000;width:44px;height:44px;border:none;background:rgba(255,255,255,.2);color:#fff;font-size:1.6rem;border-radius:50%;cursor:pointer;" aria-label="Fermer">×</button>
<img id="lightbox-img" src="" alt="" style="max-width:95%;max-height:90vh;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,.5);" onclick="event.stopPropagation()">
</div>
<script>
function openLightbox(src){
var lb=document.getElementById('lightbox');
document.getElementById('lightbox-img').src=src;
lb.style.display='flex';
document.body.style.overflow='hidden';
}
function closeLightbox(){
document.getElementById('lightbox').style.display='none';
document.body.style.overflow='';
}
document.addEventListener('keydown',function(e){if(e.key==='Escape')closeLightbox();});
function ytPlay(card) {
var vid = card.dataset.vid;
var ts = parseInt(card.dataset.ts) || 0;
card.classList.add('playing');
card.innerHTML = '<iframe src="https://www.youtube-nocookie.com/embed/' + vid + '?autoplay=1&rel=0&modestbranding=1' + (ts > 0 ? '&start=' + ts : '') + '" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>';
}
</script>
</body>
</html>
