revert PR #9050

modules/rubiconBidAdapter.js

@@ -27,7 +27,7 @@ const DEFAULT_PBS_INTEGRATION = 'pbjs';
 const DEFAULT_RENDERER_URL = 'https://video-outstream.rubiconproject.com/apex-2.2.1.js';
 // renderer code at https://github.com/rubicon-project/apex2
 
-let rubiConf = {};
+let rubiConf = config.getConfig('rubicon') || {};
 // we are saving these as global to this module so that if a pub accidentally overwrites the entire
 // rubicon object, then we do not lose other data
 config.getConfig('rubicon', config => {
@@ -322,6 +322,7 @@ export const spec = {
         )
       );
     });
+    // if (rubiConf.singleRequest !== true) {
     if (config.getConfig('rubicon.singleRequest') !== true) {
       // bids are not grouped if single request mode is not enabled
       requests = filteredHttpRequest.concat(bannerBidRequests.map(bidRequest => {

test/spec/modules/rubiconBidAdapter_spec.js

@@ -1229,6 +1229,30 @@ describe('the rubicon adapter', function () {
             });
           });
 
+          it('should still use single request if other rubicon configs are set after', function () {
+            // set single request to true
+            config.setConfig({ rubicon: { singleRequest: true } });
+
+            // execute some other rubicon setConfig
+            config.setConfig({ rubicon: { netRevenue: true } });
+
+            const bidCopy = utils.deepClone(bidderRequest.bids[0]);
+            bidderRequest.bids.push(bidCopy);
+            bidderRequest.bids.push(bidCopy);
+            bidderRequest.bids.push(bidCopy);
+
+            let serverRequests = spec.buildRequests(bidderRequest.bids, bidderRequest);
+
+            // should have 1 request only
+            expect(serverRequests).that.is.an('array').of.length(1);
+
+            // get the built query
+            let data = parseQuery(serverRequests[0].data);
+
+            // num slots should be 4
+            expect(data.slots).to.equal('4');
+          });
+
           it('should not group bid requests if singleRequest does not equal true', function () {
             config.setConfig({rubicon: {singleRequest: false}});