diff --git a/docker/nginx/conf.d/include/track-download b/docker/nginx/conf.d/include/track-download
index 7c637fe3..408e4150 100644
--- a/docker/nginx/conf.d/include/track-download
+++ b/docker/nginx/conf.d/include/track-download
@@ -1,4 +1,3 @@
-# register the download in accounts service (cookies should contain jwt)
 log_by_lua_block {
     local skynet_account = require("skynet.account")
 
@@ -22,7 +21,8 @@ log_by_lua_block {
         end
 
         if ngx.header["Skynet-Skylink"] and ngx.status >= ngx.HTTP_OK and ngx.status < ngx.HTTP_SPECIAL_RESPONSE then
-            local ok, err = ngx.timer.at(0, track, ngx.header["Skynet-Skylink"], ngx.status, ngx.var.body_bytes_sent, skynet_account.get_auth_headers())
+            local auth_headers = skynet_account.get_auth_headers()
+            local ok, err = ngx.timer.at(0, track, ngx.header["Skynet-Skylink"], ngx.status, ngx.var.body_bytes_sent, auth_headers)
             if err then ngx.log(ngx.ERR, "Failed to create timer: ", err) end
         end
     end
diff --git a/docker/nginx/conf.d/include/track-registry b/docker/nginx/conf.d/include/track-registry
index 0344b6c6..8e8ae1d4 100644
--- a/docker/nginx/conf.d/include/track-registry
+++ b/docker/nginx/conf.d/include/track-registry
@@ -1,4 +1,3 @@
-# register the registry access in accounts service (cookies should contain jwt)
 log_by_lua_block {
     local skynet_account = require("skynet.account")
 
@@ -25,7 +24,8 @@ log_by_lua_block {
         end
 
         if ngx.status == ngx.HTTP_OK or ngx.status == ngx.HTTP_NOT_FOUND then
-            local ok, err = ngx.timer.at(0, track, ngx.req.get_method(), skynet_account.get_auth_headers())
+            local auth_headers = skynet_account.get_auth_headers()
+            local ok, err = ngx.timer.at(0, track, ngx.req.get_method(), auth_headers)
             if err then ngx.log(ngx.ERR, "Failed to create timer: ", err) end
         end
     end
diff --git a/docker/nginx/conf.d/include/track-upload b/docker/nginx/conf.d/include/track-upload
index 21df6d83..edca6bd7 100644
--- a/docker/nginx/conf.d/include/track-upload
+++ b/docker/nginx/conf.d/include/track-upload
@@ -1,4 +1,3 @@
-# register the upload in accounts service (cookies should contain jwt)
 log_by_lua_block {
     local skynet_account = require("skynet.account")
 
@@ -22,7 +21,8 @@ log_by_lua_block {
 
         -- report all skylinks (header empty if request failed) but only if jwt is preset (user is authenticated)
         if ngx.header["Skynet-Skylink"] then
-            local ok, err = ngx.timer.at(0, track, ngx.header["Skynet-Skylink"], skynet_account.get_auth_headers())
+            local auth_headers = skynet_account.get_auth_headers()
+            local ok, err = ngx.timer.at(0, track, ngx.header["Skynet-Skylink"], auth_headers)
             if err then ngx.log(ngx.ERR, "Failed to create timer: ", err) end
         end
     end