diff --git a/CRM/Api4/Page/Api4Explorer.php b/CRM/Api4/Page/Api4Explorer.php
index 5566acde9fd8..83b88c633ccf 100644
--- a/CRM/Api4/Page/Api4Explorer.php
+++ b/CRM/Api4/Page/Api4Explorer.php
@@ -12,6 +12,7 @@ public function run() {
     Civi::resources()
       ->addVars('api4', $vars)
       ->addScriptFile('civicrm', 'js/load-bootstrap.js')
+      ->addScriptFile('civicrm', 'bower_components/js-yaml/dist/js-yaml.min.js')
       ->addScriptFile('civicrm', 'bower_components/google-code-prettify/bin/prettify.min.js')
       ->addStyleFile('civicrm', 'bower_components/google-code-prettify/bin/prettify.min.css');
 
diff --git a/Civi/Angular/Manager.php b/Civi/Angular/Manager.php
index c44b854aa694..cb4c4c86d27f 100644
--- a/Civi/Angular/Manager.php
+++ b/Civi/Angular/Manager.php
@@ -98,6 +98,8 @@ public function getModules() {
       $angularModules['ui.sortable'] = include "$civicrm_root/ang/ui.sortable.ang.php";
       $angularModules['unsavedChanges'] = include "$civicrm_root/ang/unsavedChanges.ang.php";
       $angularModules['statuspage'] = include "$civicrm_root/ang/crmStatusPage.ang.php";
+      $angularModules['api4Explorer'] = include "$civicrm_root/ang/api4Explorer.ang.php";
+      $angularModules['api4'] = include "$civicrm_root/ang/api4.ang.php";
 
       foreach (\CRM_Core_Component::getEnabledComponents() as $component) {
         $angularModules = array_merge($angularModules, $component->getAngularModules());
diff --git a/ang/api4.ang.php b/ang/api4.ang.php
index f7d69b39a3ca..2c8a85b753be 100644
--- a/ang/api4.ang.php
+++ b/ang/api4.ang.php
@@ -1,6 +1,7 @@
 <?php
 // Autoloader data for Api4 angular module.
 return [
+  'ext' => 'civicrm',
   'js' => [
     'ang/api4.js',
     'ang/api4/*.js',
diff --git a/ang/api4Explorer.ang.php b/ang/api4Explorer.ang.php
index e00ea0985c34..9b974d53bf8d 100644
--- a/ang/api4Explorer.ang.php
+++ b/ang/api4Explorer.ang.php
@@ -1,14 +1,13 @@
 <?php
 // Autoloader data for Api4 explorer.
 return [
+  'ext' => 'civicrm',
   'js' => [
     'ang/api4Explorer.js',
-    'ang/api4Explorer/*.js',
-    'ang/api4Explorer/*/*.js',
-    'lib/*.js',
+    'ang/api4Explorer/Explorer.js',
   ],
   'css' => [
-    'css/explorer.css',
+    'css/api4-explorer.css',
   ],
   'partials' => [
     'ang/api4Explorer',
diff --git a/composer.json b/composer.json
index b298a5c9baeb..ddbebd438ca1 100644
--- a/composer.json
+++ b/composer.json
@@ -199,6 +199,9 @@
       "select2": {
         "url": "https://github.com/colemanw/select2/archive/v3.5-civicrm-1.0.zip"
       },
+      "js-yaml": {
+        "url": "https://github.com/nodeca/js-yaml/archive/3.13.1.zip"
+      },
       "smartmenus": {
         "url": "https://github.com/vadikom/smartmenus/archive/1.1.0.zip",
         "ignore": [".gitignore", "Gruntfile.js"]
diff --git a/css/explorer.css b/css/api4-explorer.css
similarity index 100%
rename from css/explorer.css
rename to css/api4-explorer.css
diff --git a/js/crm.ajax.js b/js/crm.ajax.js
index e3ff56d1a638..bfff407843dc 100644
--- a/js/crm.ajax.js
+++ b/js/crm.ajax.js
@@ -3,7 +3,7 @@
  * @see https://wiki.civicrm.org/confluence/display/CRMDOC/AJAX+Interface
  * @see https://wiki.civicrm.org/confluence/display/CRMDOC/Ajax+Pages+and+Forms
  */
-(function($, CRM, undefined) {
+(function($, CRM, _, undefined) {
   /**
    * @param string path
    * @param string|object query
@@ -629,4 +629,4 @@
       });
   });
 
-}(jQuery, CRM));
+}(jQuery, CRM, _));
diff --git a/js/load-bootstrap.js b/js/load-bootstrap.js
index aff280a07be8..e528805a181d 100644
--- a/js/load-bootstrap.js
+++ b/js/load-bootstrap.js
@@ -1,7 +1,7 @@
 // Loads a copy of shoreditch's bootstrap if bootstrap is missing
 CRM.$(function($) {
   if (!$.isFunction($.fn.dropdown)) {
-    CRM.loadScript(CRM.vars.api4.basePath + 'lib/shoreditch/dropdown.js');
-    $('head').append('<link type="text/css" rel="stylesheet" href="' + CRM.vars.api4.basePath + 'lib/shoreditch/bootstrap.css" />');
+    //CRM.loadScript(CRM.vars.api4.basePath + 'lib/shoreditch/dropdown.js');
+    //$('head').append('<link type="text/css" rel="stylesheet" href="' + CRM.vars.api4.basePath + 'lib/shoreditch/bootstrap.css" />');
   }
-});
\ No newline at end of file
+});