diff --git a/core/modules/node/tests/src/Functional/NodeTranslationUITest.php b/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
index a44bea1..fa0ad13 100644
--- a/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
+++ b/core/modules/node/tests/src/Functional/NodeTranslationUITest.php
@@ -21,13 +21,15 @@ class NodeTranslationUITest extends ContentTranslationUITestBase {
    */
   protected $defaultCacheContexts = [
     'languages:language_interface',
-    'session',
     'theme',
     'route',
     'timezone',
     'url.path.parent',
     'url.query_args:_wrapper_format',
-    'user'
+    'user.roles',
+    // These two cache contexts are added by BigPipe.
+    'cookies:big_pipe_nojs',
+    'session.exists',
   ];
 
   /**
diff --git a/core/modules/page_cache/src/Tests/PageCacheTagsIntegrationTest.php b/core/modules/page_cache/src/Tests/PageCacheTagsIntegrationTest.php
index be704d1..7b6eb85 100644
--- a/core/modules/page_cache/src/Tests/PageCacheTagsIntegrationTest.php
+++ b/core/modules/page_cache/src/Tests/PageCacheTagsIntegrationTest.php
@@ -76,6 +76,9 @@ public function testPageCacheTags() {
       // condition.
       'url.path',
       'url.query_args:' . MainContentViewSubscriber::WRAPPER_FORMAT,
+      // These two cache contexts are added by BigPipe.
+      'cookies:big_pipe_nojs',
+      'session.exists',
     ];
 
     // Full node page 1.
diff --git a/core/modules/system/src/Tests/Installer/StandardInstallerTest.php b/core/modules/system/src/Tests/Installer/StandardInstallerTest.php
index b0ceef9..3132be2 100644
--- a/core/modules/system/src/Tests/Installer/StandardInstallerTest.php
+++ b/core/modules/system/src/Tests/Installer/StandardInstallerTest.php
@@ -18,11 +18,8 @@ class StandardInstallerTest extends ConfigAfterInstallerTestBase {
    * Ensures that the user page is available after installation.
    */
   public function testInstaller() {
-    // Verify that the confirmation message appears.
-    require_once \Drupal::root() . '/core/includes/install.inc';
-    $this->assertRaw(t('Congratulations, you installed @drupal!', [
-      '@drupal' => drupal_install_profile_distribution_name(),
-    ]));
+    // Verify that the Standard install profile's default frontpage appears.
+    $this->assertRaw('No front page content has been created yet.');
   }
 
   /**
diff --git a/core/profiles/standard/standard.info.yml b/core/profiles/standard/standard.info.yml
index 82af32e..7fbaec6 100644
--- a/core/profiles/standard/standard.info.yml
+++ b/core/profiles/standard/standard.info.yml
@@ -26,6 +26,7 @@ dependencies:
   - path
   - page_cache
   - dynamic_page_cache
+  - big_pipe
   - taxonomy
   - dblog
   - search
diff --git a/core/profiles/standard/tests/src/Functional/StandardTest.php b/core/profiles/standard/tests/src/FunctionalJavascript/StandardTest.php
similarity index 95%
rename from core/profiles/standard/tests/src/Functional/StandardTest.php
rename to core/profiles/standard/tests/src/FunctionalJavascript/StandardTest.php
index f449c10..824ddc1 100644
--- a/core/profiles/standard/tests/src/Functional/StandardTest.php
+++ b/core/profiles/standard/tests/src/FunctionalJavascript/StandardTest.php
@@ -1,13 +1,13 @@
 <?php
 
-namespace Drupal\Tests\standard\Functional;
+namespace Drupal\Tests\standard\FunctionalJavascript;
 
+use Drupal\FunctionalJavascriptTests\JavascriptTestBase;
 use Drupal\Tests\SchemaCheckTestTrait;
 use Drupal\contact\Entity\ContactForm;
 use Drupal\Core\Url;
 use Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber;
 use Drupal\filter\Entity\FilterFormat;
-use Drupal\Tests\BrowserTestBase;
 use Drupal\user\Entity\Role;
 
 /**
@@ -15,7 +15,7 @@
  *
  * @group standard
  */
-class StandardTest extends BrowserTestBase {
+class StandardTest extends JavascriptTestBase {
 
   use SchemaCheckTestTrait;
 
@@ -90,7 +90,8 @@ public function testStandard() {
     // Add a comment.
     $this->drupalLogin($this->adminUser);
     $this->drupalGet('node/1');
-    $this->assertRaw('Then she picked out two somebodies,<br />Sally and me', 'Found a line break.');
+    $this->assertJsCondition('document.querySelectorAll(\'script[data-big-pipe-event="stop"]\').length === 1');
+    $this->assertRaw('Then she picked out two somebodies,<br>Sally and me', 'Found a line break.');
     $this->drupalPostForm(NULL, [
       'subject[0][value]' => 'Barfoo',
       'comment_body[0][value]' => 'Then she picked out two somebodies, Sally and me',