Alberto Delgado Roda

Hi @elastic/apm-ui, Would it be possible for someone to help @brevalessio24 with this? Thanks, Alberto

Thanks a lot @cauemarcondes and @stuartnelson3 for your answers! @brevalessio24 let us know if this helps you. Thanks, Alberto

@brevalessio24 I have forgotten to ask before, apologies. What version of the [elastic stack](https://www.elastic.co/elastic-stack/) are you using? Thanks!

Hi @brevalessio24, Have you had time to check my colleague's comment? Thanks, Alberto

Hi @741439599, Thanks for using the RUM agent! The agent calculates [First Contentful Paint](https://developer.mozilla.org/en-US/docs/Glossary/First_contentful_paint) [automatically](https://www.elastic.co/guide/en/apm/agent/rum-js/5.x/supported-technologies.html#user-centric-metrics) so you don't need to do it manually. Just make sure that you are not...

Hi @741439599, The agent does not report First Paint (FP) because the major players within the performance industry have decided to focus on [these](https://web.dev/user-centric-performance-metrics/#important-metrics-to-measure) user-centric metrics. That's why we only...

Hi @lizozom, We have been trying to accomplish this via https://github.com/elastic/synthetics-dev/issues/86 Unfortunately, the [first](https://github.com/elastic/apm-agent-rum-js/pull/1187) approach we followed did not end well, yet. After that, we focused on the crosslinking thing...

Hi @jclusso, Thanks for using the RUM agent and investing your time on opening this issue! > TraceState header is being submitted with no value. Is something like "tracestate:" the...

Hi @jclusso, I'm assuming that you are setting [propagateTracestate](https://www.elastic.co/guide/en/apm/agent/rum-js/current/configuration.html#propagate-tracestate) to true when initialising the agent, is that right? > I actually have no idea what is being sent in the...

Hi @jclusso, Thanks for the additional details! -- We have been able to reproduce the situation where `tracestate` header is sent with an empty value, that means that we will...