diff --git a/playwright-tests/pages/BasePage.ts b/playwright-tests/pages/BasePage.ts
index 3ea0be374..07d254391 100644
--- a/playwright-tests/pages/BasePage.ts
+++ b/playwright-tests/pages/BasePage.ts
@@ -246,11 +246,12 @@ export class BasePage {
 
     async buildExperimentUrl(testData: Partial<ITestData>): Promise<string> {
 
-        let experimentsURLExtension = "?cns=all&experiments=";
+        let experimentsURLExtension = "";
         
         const { experiments } = testData;
  
         if (experiments !== undefined) {
+            experimentsURLExtension += "?cns=all&experiments="
             experimentsURLExtension += experiments?.isMobileFirst 
                 ? "MobileFirstAppointment=MobileFirstAppt_V1=MobileFirstAppt_TEST=true"
                 : "MobileFirstAppointment=MobileFirstAppt_V1=MobileFirstAppt_CONTROL=true";
diff --git a/playwright-tests/tests/CashReplaceMobileFirstModal.ts b/playwright-tests/tests/CashReplaceMobileFirstModal.ts
index 714d95d84..16ec6d0a2 100644
--- a/playwright-tests/tests/CashReplaceMobileFirstModal.ts
+++ b/playwright-tests/tests/CashReplaceMobileFirstModal.ts
@@ -1,5 +1,5 @@
 //Imports here
-import { ITestData } from 'framework/TestData'
+import { ITestData, getDefaultExperimentsData } from 'framework/TestData'
 import { ServiceLocation, ServicePackage, PaymentType, PartQuestionType } from 'safelite-playwright-core';
 import { ITestCase } from '../framework/Typedefs'
 import { VehicleLookupType } from 'safelite-playwright-core';
@@ -64,6 +64,12 @@ const cashReplaceMobileFirstModalData: Partial<ITestData> = {
     // Override payment details
     paymentDetails: {
         paymentType: PaymentType.PayAtService
+    },
+
+    // Experiments
+    experiments: {
+        ...getDefaultExperimentsData(),
+        isMobileFirst: true
     }
 }