trace backend-specific task page. The following is a summary:</p><p>All applications should forward the following headers:</p><ul><li><code>x-request-id</code>: an Envoy-specific header that is used to consistently sample logs and traces.</li><li><code>traceparent</code> and <code>tracestate</code>: <a href=https://www.w3.org/TR/trace-context/>W3C standard headers</a></li></ul><p>For Zipkin, the <a href=https://github.com/openzipkin/b3-propagation>B3 multi-header format</a> should be forwarded:</p><ul><li><