Browser Crash Logging Configuration


This feature is currently only compatible with Chrome 72+

In order to use the Crash Logging feature, your server must send a Report-To header in the initial page response that looks like this:


This will inform your users' browsers to send crash reports to LogRocket so we can correlate them with your LogRocket sessions.

This header can either be configured server-side or CDN-side like with a Cloudflare worker.

Here is an example of a CloudFlare worker that attaches the Report-To header to every response:

addEventListener('fetch', event => {

 * Add Report-To header
 * @param {Request} request
async function handleRequest(request) {
  const response = await fetch(request);
  const reportTo = response.headers.get('Report-To');
  if (!reportTo) {
    const newHeaders = new Headers(response.headers);
    const reportToHeader = {
      max_age: 10886400,
      endpoints: [{
        url: ''
    newHeaders.set('Report-To', JSON.stringify(reportToHeader));
    return new Response(response.body, {
      status: response.status,
      statusText: response.statusText,
      headers: newHeaders,

  return response;