fix(http): accept x-request-id as well

Author: gergelyke

lib/instrumentations/core/http/server.js

@@ -31,7 +31,7 @@ function wrapListener (listener, agent, mustCollectStore) {
 
     var originalWriteHead = response.writeHead
 
-    var requestId = headers['request-id'] || requestQuery || agent.generateId()
+    var requestId = headers['request-id'] || headers['x-request-id'] || requestQuery || agent.generateId()
 
     debug('trace event (sr); request: %s', requestId, headers)