From 719523b765fd652cbc346d30230ae5a4abe08c00 Mon Sep 17 00:00:00 2001
From: AdmixerTech <35560933+AdmixerTech@users.noreply.github.com>
Date: Wed, 13 Oct 2021 17:13:27 +0300
Subject: [PATCH] add docReferrer (#7551)

Co-authored-by: atkachov <atkachov@admixer.ua>
---
 modules/admixerBidAdapter.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/modules/admixerBidAdapter.js b/modules/admixerBidAdapter.js
index e136dfcfbdb..bb91ddcdfc8 100644
--- a/modules/admixerBidAdapter.js
+++ b/modules/admixerBidAdapter.js
@@ -19,9 +19,20 @@ export const spec = {
    * Make a server request from the list of BidRequests.
    */
   buildRequests: function (validRequest, bidderRequest) {
+    let w;
+    let docRef;
+    do {
+      w = w ? w.parent : window;
+      try {
+        docRef = w.document.referrer;
+      } catch (e) {
+        break;
+      }
+    } while (w !== window.top);
     const payload = {
       imps: [],
       ortb2: config.getConfig('ortb2'),
+      docReferrer: docRef,
     };
     let endpointUrl;
     if (bidderRequest) {