Zeta Ssp Bid Adapter: provide domain in site object (prebid#6928)

* Provide domain value in site object

* Support IE11

* Just minor refactor

Co-authored-by: Surovenko Alexey <surovenko.alexey@gmail.com>

modules/zetaSspBidAdapter.js

@@ -62,9 +62,10 @@ export const spec = {
         sid: params.sid ? params.sid : undefined
       }
     };
-
+    const rInfo = bidderRequest.refererInfo;
     payload.device.ua = navigator.userAgent;
-    payload.site.page = bidderRequest.refererInfo.referer;
+    payload.site.page = (rInfo && rInfo.referer) ? rInfo.referer.trim() : window.location.href;
+    payload.site.domain = getDomainFromURL(payload.site.page);
     payload.site.mobile = /(ios|ipod|ipad|iphone|android)/i.test(navigator.userAgent) ? 1 : 0;
 
     if (params.test) {
@@ -115,8 +116,9 @@ export const spec = {
         netRevenue: NET_REV,
       };
       if (zetaBid.adomain && zetaBid.adomain.length) {
-        bid.meta = {};
-        bid.meta.advertiserDomains = zetaBid.adomain;
+        bid.meta = {
+          advertiserDomains: zetaBid.adomain
+        };
       }
       bidResponse.push(bid);
     }
@@ -178,4 +180,14 @@ function provideEids(request, payload) {
   }
 }
 
+function getDomainFromURL(url) {
+  let anchor = document.createElement('a');
+  anchor.href = url;
+  let hostname = anchor.hostname;
+  if (hostname.indexOf('www.') === 0) {
+    return hostname.substring(4);
+  }
+  return hostname;
+}
+
 registerBidder(spec);

test/spec/modules/zetaSspBidAdapter_spec.js

@@ -33,7 +33,7 @@ describe('Zeta Ssp Bid Adapter', function() {
       }
     },
     refererInfo: {
-      referer: 'zetaglobal.com'
+      referer: 'http://www.zetaglobal.com/page?param=value'
     },
     gdprConsent: {
       gdprApplies: 1,
@@ -68,6 +68,13 @@ describe('Zeta Ssp Bid Adapter', function() {
     expect(payload.user.ext.eids).to.eql(eids);
   });
 
+  it('Test page and domain in site', function () {
+    const request = spec.buildRequests(bannerRequest, bannerRequest[0]);
+    const payload = JSON.parse(request.data);
+    expect(payload.site.page).to.eql('http://www.zetaglobal.com/page?param=value');
+    expect(payload.site.domain).to.eql('zetaglobal.com');
+  });
+
   it('Test the request processing function', function () {
     const request = spec.buildRequests(bannerRequest, bannerRequest[0]);
     expect(request).to.not.be.empty;