TheMediaGrid Bid Adapter: use referrer from refererInfo (prebid#3968)

* Added Grid Bid Adapter

* remove priceType from TheMediaGrid Bid Adapter

* Add video support in Grid Bid Adapter

* Added test parameter for video slot

* update Grid Bid Adapter to set size in response bid

* Update Grid Bid Adapter to support identical uids in parameters

* Fix typo in test file for Grid Bid Adapter

* Update The Grid Media Bidder Adapter to send refererInfo.referer as 'u' parameter in ad request

modules/gridBidAdapter.js

@@ -79,13 +79,15 @@ export const spec = {
     });
 
     const payload = {
-      u: utils.getTopWindowUrl(),
       auids: auids.join(','),
       sizes: utils.getKeys(sizeMap).join(','),
       r: reqId
     };
 
     if (bidderRequest) {
+      if (bidderRequest.refererInfo && bidderRequest.refererInfo.referer) {
+        payload.u = encodeURIComponent(bidderRequest.refererInfo.referer);
+      }
       if (bidderRequest.timeout) {
         payload.wtimeout = bidderRequest.timeout;
       }

test/spec/modules/gridBidAdapter_spec.js

@@ -47,6 +47,8 @@ describe('TheMediaGrid Adapter', function () {
       });
       return res;
     }
+    const bidderRequest = {refererInfo: {referer: 'http://example.com'}};
+    const encodedReferer = encodeURIComponent(bidderRequest.refererInfo.referer);
     let bidRequests = [
       {
         'bidder': 'grid',
@@ -84,29 +86,30 @@ describe('TheMediaGrid Adapter', function () {
     ];
 
     it('should attach valid params to the tag', function () {
-      const request = spec.buildRequests([bidRequests[0]]);
+      const request = spec.buildRequests([bidRequests[0]], bidderRequest);
       expect(request.data).to.be.an('string');
       const payload = parseRequest(request.data);
-      expect(payload).to.have.property('u').that.is.a('string');
+      expect(payload).to.have.property('u', encodedReferer);
       expect(payload).to.have.property('auids', '1');
       expect(payload).to.have.property('sizes', '300x250,300x600');
       expect(payload).to.have.property('r', '22edbae2733bf6');
     });
 
     it('auids must not be duplicated', function () {
-      const request = spec.buildRequests(bidRequests);
+      const request = spec.buildRequests(bidRequests, bidderRequest);
       expect(request.data).to.be.an('string');
       const payload = parseRequest(request.data);
-      expect(payload).to.have.property('u').that.is.a('string');
+      expect(payload).to.have.property('u', encodedReferer);
       expect(payload).to.have.property('auids', '1,1,2');
       expect(payload).to.have.property('sizes', '300x250,300x600,728x90');
       expect(payload).to.have.property('r', '22edbae2733bf6');
     });
 
     it('if gdprConsent is present payload must have gdpr params', function () {
-      const request = spec.buildRequests(bidRequests, {gdprConsent: {consentString: 'AAA', gdprApplies: true}});
+      const request = spec.buildRequests(bidRequests, {gdprConsent: {consentString: 'AAA', gdprApplies: true}, refererInfo: bidderRequest.refererInfo});
       expect(request.data).to.be.an('string');
       const payload = parseRequest(request.data);
+      expect(payload).to.have.property('u', encodedReferer);
       expect(payload).to.have.property('gdpr_consent', 'AAA');
       expect(payload).to.have.property('gdpr_applies', '1');
     });