From ced6ba4e13bc425662c4d02fd2fcbd11769200f9 Mon Sep 17 00:00:00 2001
From: Cedric Ziel <cedric@cedric-ziel.com>
Date: Sat, 22 Jun 2024 19:05:25 +0200
Subject: [PATCH] fix: set global propagator

---
 modules/caddyhttp/tracing/tracer.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/caddyhttp/tracing/tracer.go b/modules/caddyhttp/tracing/tracer.go
index ecccc18f4..ccfa0f85f 100644
--- a/modules/caddyhttp/tracing/tracer.go
+++ b/modules/caddyhttp/tracing/tracer.go
@@ -3,6 +3,7 @@ package tracing
 import (
 	"context"
 	"fmt"
+	"go.opentelemetry.io/otel"
 	"net/http"
 
 	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
@@ -63,7 +64,9 @@ func newOpenTelemetryWrapper(ctx context.Context, spanName string, injectServerT
 		return ot, fmt.Errorf("creating trace exporter error: %w", err)
 	}
 
-	ot.propagators = autoprop.NewTextMapPropagator()
+	prop := autoprop.NewTextMapPropagator()
+	otel.SetTextMapPropagator(prop)
+	ot.propagators = prop
 
 	tracerProvider := globalTracerProvider.getTracerProvider(
 		sdktrace.WithBatcher(traceExporter),