diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 8c947e2..d8fac86 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -221,7 +221,7 @@ function _theme($hook, $variables = array()) {
   // theme registry to work with, and therefore cannot process the theme
   // request properly. See also \Drupal\Core\Theme\Registry::get().
   if (!$module_handler->isLoaded() && !defined('MAINTENANCE_MODE')) {
-    throw new Exception(t('_theme() may not be called until all modules are loaded.'));
+    //throw new Exception(t('_theme() may not be called until all modules are loaded.'));
   }
 
   /** @var \Drupal\Core\Utility\ThemeRegistry $theme_registry */
diff --git a/core/lib/Drupal/Core/DrupalKernel.php b/core/lib/Drupal/Core/DrupalKernel.php
index c014e4a..2f0e43e 100644
--- a/core/lib/Drupal/Core/DrupalKernel.php
+++ b/core/lib/Drupal/Core/DrupalKernel.php
@@ -421,7 +421,7 @@ public function getContainer() {
    */
   public function preHandle(Request $request) {
     // Load all enabled modules.
-    $this->container->get('module_handler')->loadAll();
+    //$this->container->get('module_handler')->loadAll();
 
     // Initialize legacy request globals.
     $this->initializeRequestGlobals($request);
diff --git a/core/lib/Drupal/Core/Extension/ModuleHandler.php b/core/lib/Drupal/Core/Extension/ModuleHandler.php
index 035e75f..1739322 100644
--- a/core/lib/Drupal/Core/Extension/ModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/ModuleHandler.php
@@ -368,6 +368,7 @@ public function implementsHook($module, $hook) {
    * {@inheritdoc}
    */
   public function invoke($module, $hook, array $args = array()) {
+    $this->loadAll();
     if (!$this->implementsHook($module, $hook)) {
       return;
     }
@@ -379,6 +380,7 @@ public function invoke($module, $hook, array $args = array()) {
    * {@inheritdoc}
    */
   public function invokeAll($hook, array $args = array()) {
+    $this->loadAll();
     $return = array();
     $implementations = $this->getImplementations($hook);
     foreach ($implementations as $module) {
@@ -401,6 +403,7 @@ public function invokeAll($hook, array $args = array()) {
    * {@inheritdoc}
    */
   public function alter($type, &$data, &$context1 = NULL, &$context2 = NULL) {
+    $this->loadAll();
     // Most of the time, $type is passed as a string, so for performance,
     // normalize it to that. When passed as an array, usually the first item in
     // the array is a generic type, and additional items in the array are more
diff --git a/core/lib/Drupal/Core/StreamWrapper/StreamWrapperManager.php b/core/lib/Drupal/Core/StreamWrapper/StreamWrapperManager.php
index 43532a0..45cf109 100644
--- a/core/lib/Drupal/Core/StreamWrapper/StreamWrapperManager.php
+++ b/core/lib/Drupal/Core/StreamWrapper/StreamWrapperManager.php
@@ -279,7 +279,7 @@ public function addStreamWrapper($service_id, $class, $scheme) {
    * Internal use only.
    */
   public function register() {
-    $this->moduleHandler->alter('stream_wrappers', $this->info);
+    //$this->moduleHandler->alter('stream_wrappers', $this->info);
 
     foreach ($this->info as $scheme => $info) {
       $this->registerWrapper($scheme, $info['class'], $info['type']);