Prebidmanager analytics adapter: fix console error when utm is null a…

…nd collect page info (#6002)

* Fix PrebidManager analytics console error when utm data is null

* collect pageInfo in PrebidManager analytics adapter

* minor edit + add test for pageInfo in PrebidManager analytics adapter

Co-authored-by: apuzanova <apuzanova@asteriosoft.com>

modules/prebidmanagerAnalyticsAdapter.js

@@ -83,7 +83,7 @@ function collectUtmTagData() {
     if (newUtm === false) {
       utmTags.forEach(function (utmKey) {
         let itemValue = localStorage.getItem(`pm_${utmKey}`);
-        if (itemValue.length !== 0) {
+        if (itemValue && itemValue.length !== 0) {
           pmUtmTags[utmKey] = itemValue;
         }
       });
@@ -99,6 +99,16 @@ function collectUtmTagData() {
   return pmUtmTags;
 }
 
+function collectPageInfo() {
+  const pageInfo = {
+    domain: window.location.hostname,
+  }
+  if (document.referrer) {
+    pageInfo.referrerDomain = utils.parseUrl(document.referrer).hostname;
+  }
+  return pageInfo;
+}
+
 function flush() {
   if (!pmAnalyticsEnabled) {
     return;
@@ -111,6 +121,7 @@ function flush() {
       bundleId: initOptions.bundleId,
       events: _eventQueue,
       utmTags: collectUtmTagData(),
+      pageInfo: collectPageInfo(),
     };
 
     ajax(

test/spec/modules/prebidmanagerAnalyticsAdapter_spec.js

@@ -1,6 +1,8 @@
 import prebidmanagerAnalytics from 'modules/prebidmanagerAnalyticsAdapter.js';
 import {expect} from 'chai';
 import {server} from 'test/mocks/xhr.js';
+import * as utils from 'src/utils.js';
+
 let events = require('src/events');
 let constants = require('src/constants.json');
 
@@ -98,7 +100,7 @@ describe('Prebid Manager Analytics Adapter', function () {
       events.emit(constants.EVENTS.AUCTION_END, {});
       events.emit(constants.EVENTS.BID_TIMEOUT, {});
 
-      sinon.assert.callCount(prebidmanagerAnalytics.track, 7);
+      sinon.assert.callCount(prebidmanagerAnalytics.track, 6);
     });
   });
 
@@ -135,4 +137,23 @@ describe('Prebid Manager Analytics Adapter', function () {
       expect(pmEvents.utmTags.utm_content).to.equal('');
     });
   });
+
+  describe('build page info', function () {
+    afterEach(function () {
+      prebidmanagerAnalytics.disableAnalytics()
+    });
+    it('should build page info', function () {
+      prebidmanagerAnalytics.enableAnalytics({
+        provider: 'prebidmanager',
+        options: {
+          bundleId: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
+        }
+      });
+
+      const pmEvents = JSON.parse(server.requests[0].requestBody.substring(2));
+
+      expect(pmEvents.pageInfo.domain).to.equal(window.location.hostname);
+      expect(pmEvents.pageInfo.referrerDomain).to.equal(utils.parseUrl(document.referrer).hostname);
+    });
+  });
 });