Documentation

consentManifest() adds a small inline script to the <head> of index.html. It sends /init while the browser downloads your JavaScript, and hosted() uses that response instead of sending its own. The banner usually shows 50 to 250 ms sooner. There is nothing to configure.

The early request can't read your app's options, so in a few setups it won't match and the app sends a second /init. Pass initPrefetch: false when the app uses offline() or gives hosted() its own backendURL, fetch, initURL or headers. With its own fetch, hosted() sends /init through it and ignores the early response. If it sets credentials, overrides, storageKey, an experiment, or journey: false, pass the same values as initPrefetch: { credentials, experiment, journey, overrides, storageKey }. With journey: 'tab', passing it too makes a tab's first /init report the 'tab' scope instead of 'page'. It doesn't save a request. Pass experiment only when c15t assigns the arm. If a feature flag picks it, leave it out, or the script sends an arm the visitor may never see. The dev server adds the script even to a manifest() app, which then sends one /init per page load that it doesn't use. A production build leaves it out.