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VAP10-38: PostHog - Enable cross domain tracking #819

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Merged
nitishsurana merged 2 commits into from
Nov 25, 2025
Merged

VAP10-38: PostHog - Enable cross domain tracking #819

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b98140f
VAP10-38: PostHog - Enable cross domain tracking
nitishsurana Nov 25, 2025
ec962ee
fixing error
nitishsurana Nov 25, 2025
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24 changes: 24 additions & 0 deletions fern/custom.js
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Original file line number Diff line number Diff line change
Expand Up @@ -70,9 +70,33 @@ function initializeReo() {
document.head.appendChild(reoScript);
}

function configurePostHog() {
if (isLocalhost) {
console.log('[custom.js] Skipping PostHog configuration on localhost');
return;
}

// Wait for PostHog to be initialized by Fern
const checkPostHog = setInterval(() => {
if (typeof window.posthog !== 'undefined') {
clearInterval(checkPostHog);

// Configure cross-domain tracking
window.posthog.set_config({
cross_subdomain_cookie: true,
cross_domain: '.vapi.ai',
persistence: 'localStorage+cookie'
});

}
}, 100);

}

function initializeAll() {
initializeHockeyStack();
initializeReo();
configurePostHog();
if (ENABLE_VOICE_WIDGET) {
injectVapiWidget();
}
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