diff --git a/src/plugins/data_views/public/data_views/data_views_api_client.ts b/src/plugins/data_views/public/data_views/data_views_api_client.ts
index c65db9e5c736f..762d98059dcae 100644
--- a/src/plugins/data_views/public/data_views/data_views_api_client.ts
+++ b/src/plugins/data_views/public/data_views/data_views_api_client.ts
@@ -93,6 +93,7 @@ export class DataViewsApiClient implements IDataViewsApiClient {
     } = options;
     const path = indexFilter ? FIELDS_FOR_WILDCARD_PATH : FIELDS_PATH;
     const versionQueryParam = indexFilter ? {} : { apiVersion: version };
+    const ftrCacheBuster = localStorage.getItem('dataViews:ftrCacheBuster');
 
     return this._request<FieldsForWildcardResponse>(
       path,
@@ -106,6 +107,7 @@ export class DataViewsApiClient implements IDataViewsApiClient {
         fields,
         allow_hidden: allowHidden,
         ...versionQueryParam,
+        ...(ftrCacheBuster ? { ftrCacheBuster } : {}),
       },
       indexFilter ? JSON.stringify({ index_filter: indexFilter }) : undefined,
       forceRefresh
diff --git a/src/plugins/data_views/server/rest_api_routes/internal/fields.ts b/src/plugins/data_views/server/rest_api_routes/internal/fields.ts
index cee8efc8b6d1d..22407f629b448 100644
--- a/src/plugins/data_views/server/rest_api_routes/internal/fields.ts
+++ b/src/plugins/data_views/server/rest_api_routes/internal/fields.ts
@@ -137,10 +137,14 @@ export const registerFields = async (
   >,
   isRollupsEnabled: () => boolean
 ) => {
-  router.versioned
-    .get({ path, access: 'internal', enableQueryVersion: true })
-    .addVersion(
-      { version: '1', validate: { request: { query: querySchema }, response: validate.response } },
-      handler(isRollupsEnabled)
-    );
+  router.versioned.get({ path, access: 'internal', enableQueryVersion: true }).addVersion(
+    {
+      version: '1',
+      validate: {
+        request: { query: querySchema.extends({}, { unknowns: 'ignore' }) },
+        response: validate.response,
+      },
+    },
+    handler(isRollupsEnabled)
+  );
 };
diff --git a/test/functional/page_objects/settings_page.ts b/test/functional/page_objects/settings_page.ts
index 92b6a4eebf3a8..9f262a3a26de4 100644
--- a/test/functional/page_objects/settings_page.ts
+++ b/test/functional/page_objects/settings_page.ts
@@ -484,21 +484,8 @@ export class SettingsPageObject extends FtrService {
   }
 
   async refreshDataViewFieldList(dataViewName?: string) {
-    if (dataViewName) {
-      await this.common.navigateToApp('management/kibana/dataViews');
-      await this.header.waitUntilLoadingHasFinished();
-      await this.testSubjects.click(`detail-link-${dataViewName}`);
-    }
-    await this.testSubjects.click('refreshDataViewButton');
-
-    // wait for refresh to start
-    await new Promise((r) => setTimeout(r, 500));
-
-    // wait for refresh to finish
-    await this.retry.try(async () => {
-      const btn = await this.testSubjects.find('refreshDataViewButton');
-      const disabled = await btn.getAttribute('disabled');
-      expect(disabled).to.be(null);
+    await this.browser.execute(() => {
+      localStorage.setItem('dataViews:ftrCacheBuster', Date.now().toString());
     });
   }
 
diff --git a/x-pack/test/functional/apps/discover/feature_controls/discover_security.ts b/x-pack/test/functional/apps/discover/feature_controls/discover_security.ts
index 0db9064f9cc4e..883eb1eec08c3 100644
--- a/x-pack/test/functional/apps/discover/feature_controls/discover_security.ts
+++ b/x-pack/test/functional/apps/discover/feature_controls/discover_security.ts
@@ -32,6 +32,7 @@ export default function (ctx: FtrProviderContext) {
     'header',
     'unifiedFieldList',
     'settings',
+    'settings',
   ]);
   const testSubjects = getService('testSubjects');
   const appsMenu = getService('appsMenu');
@@ -448,20 +449,7 @@ export default function (ctx: FtrProviderContext) {
       it('allows to access only via a permitted index alias', async () => {
         await globalNav.badgeExistsOrFail('Read only');
 
-        // can't access logstash index directly
-        // swapping index patterns so we get an updated field list
-        // this is necessary since we don't have access to data view management
-        // nor can we force reload the browser in a test
-        await new Promise((resolve) => setTimeout(resolve, 5000));
-        await PageObjects.discover.selectIndexPattern('logstash-*');
-        await new Promise((resolve) => setTimeout(resolve, 5000));
-        await PageObjects.discover.selectIndexPattern('alias-logstash-discover');
-        await new Promise((resolve) => setTimeout(resolve, 5000));
-        await PageObjects.discover.selectIndexPattern('logstash-*');
-        await new Promise((resolve) => setTimeout(resolve, 5000));
-        await PageObjects.discover.selectIndexPattern('alias-logstash-discover');
-
-        await new Promise((resolve) => setTimeout(resolve, 5000));
+        await PageObjects.settings.refreshDataViewFieldList();
         await PageObjects.discover.selectIndexPattern('logstash-*');
         await PageObjects.header.waitUntilLoadingHasFinished();
         await testSubjects.existOrFail('discoverNoResultsCheckIndices');