diff --git a/src/identity-utils.ts b/src/identity-utils.ts
index d363db774..88d7ef82f 100644
--- a/src/identity-utils.ts
+++ b/src/identity-utils.ts
@@ -76,7 +76,13 @@ export const cacheIdentityRequest = (
     const cacheKey = concatenateIdentities(method, identities);
     const hashedKey = generateHash(cacheKey);
 
-    cache[hashedKey] = { responseText: xhr.responseText, status: xhr.status, expireTimestamp};
+    const { mpid, is_logged_in } = JSON.parse(xhr.responseText);
+    const cachedResponseText = {
+        mpid,
+        is_logged_in,
+    };
+
+    cache[hashedKey] = { responseText: JSON.stringify(cachedResponseText), status: xhr.status, expireTimestamp};
     idCache.store(cache);
 };
 
diff --git a/test/src/tests-identity-utils.ts b/test/src/tests-identity-utils.ts
index fd5ad7168..1d0fbdebf 100644
--- a/test/src/tests-identity-utils.ts
+++ b/test/src/tests-identity-utils.ts
@@ -172,8 +172,10 @@ describe('identity-utils', () => {
             expect(cachedIdentityCall.status).to.equal(200);
             expect(cachedIdentityCall.expireTimestamp).to.equal(currentTime);
 
-            const responseText = JSON.parse(cachedIdentityCall.responseText);
-            expect(responseText).to.deep.equal(identifyResponse);
+            const cachedResponseText = JSON.parse(cachedIdentityCall.responseText);
+            
+            const expectedResponseText = {mpid: testMPID, is_logged_in: false};
+            expect(cachedResponseText).to.deep.equal(expectedResponseText);
         });
 
         it('should save a login request to local storage', () => {
@@ -184,7 +186,6 @@ describe('identity-utils', () => {
                 ...identifyResponse,
                 is_logged_in: true,
             };
-            
 
             const jsonString = JSON.stringify(loginResponse);
 
@@ -220,8 +221,9 @@ describe('identity-utils', () => {
             expect(cachedLoginCall.status).to.equal(200);
             expect(cachedLoginCall.expireTimestamp).to.equal(currentTime);
 
-            const responseText = JSON.parse(cachedLoginCall.responseText);
-            expect(responseText).to.deep.equal(loginResponse);
+            const cachedResponseText = JSON.parse(cachedLoginCall.responseText);
+            const expectedResponseText = {mpid: testMPID, is_logged_in: true};
+            expect(cachedResponseText).to.deep.equal(expectedResponseText);
         });
     });