javascript.mdx

For example:

• A frontend application is served from example.com.
• A backend service is served from api.example.com.
• The frontend application makes API calls to the backend.
• Set the tracePropagationTargets option to ['api.example.com'].
• Now outgoing XHR/fetch requests to api.example.com will get the sentry-trace header attached.

Sentry.init({
  // ...
  integrations: [
    new Sentry.BrowserTracing({
      tracePropagationTargets: ["api.example.com"],
    }),
  ],
});