From a91b23471083fe9a4a572c75e83826fa58903f34 Mon Sep 17 00:00:00 2001
From: lvhuixin <lvhuixin@baidu.com>
Date: Fri, 10 Nov 2023 20:30:59 +0800
Subject: [PATCH] discovery add refer stack

---
 modules/discoveryBidAdapter.js                | 1 +
 test/spec/modules/discoveryBidAdapter_spec.js | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/modules/discoveryBidAdapter.js b/modules/discoveryBidAdapter.js
index 465c6754e77..151e787da9b 100644
--- a/modules/discoveryBidAdapter.js
+++ b/modules/discoveryBidAdapter.js
@@ -253,6 +253,7 @@ function addImpExtParams(bidRequest = {}, bidderRequest = {}) {
     p_pos: params.position || '',
     screenSize: getScreenSize(),
     referrer: getReferrer(bidRequest, bidderRequest),
+    stack: deepAccess(bidRequest, 'refererInfo.stack', []),
     b_pos: deepAccess(bidRequest, 'mediaTypes.banner.pos', '', ''),
     ortbUser: deepAccess(bidRequest, 'ortb2.user', {}, {}),
     ortbSite: deepAccess(bidRequest, 'ortb2.site', {}, {}),
diff --git a/test/spec/modules/discoveryBidAdapter_spec.js b/test/spec/modules/discoveryBidAdapter_spec.js
index 9ebedfb7438..f3595616a6d 100644
--- a/test/spec/modules/discoveryBidAdapter_spec.js
+++ b/test/spec/modules/discoveryBidAdapter_spec.js
@@ -19,6 +19,10 @@ describe('discovery:BidAdapterTests', function () {
         },
         refererInfo: {
           page: 'https://discovery.popin.cc',
+          stack: [
+            'a.com',
+            'b.com'
+          ]
         },
         mediaTypes: {
           banner: {