diff -u b/core/modules/media/src/OEmbed/ProviderDiscoveryInterface.php b/core/modules/media/src/OEmbed/ProviderDiscoveryInterface.php
--- b/core/modules/media/src/OEmbed/ProviderDiscoveryInterface.php
+++ b/core/modules/media/src/OEmbed/ProviderDiscoveryInterface.php
@@ -38,8 +38,8 @@
    *     - formats: List of supported formats. Can be "json", "xml" or both.
    *     - discovery: Whether the provider supports oEmbed discovery.
    *
-   * @throws \InvalidArgumentException if there is no known oEmbed provider with
-   * the specified name.
+   * @throws \InvalidArgumentException
+   *   If there is no known oEmbed provider with the specified name.
    */
   public function get($provider_name);
 
diff -u b/core/modules/media/src/OEmbed/ProviderException.php b/core/modules/media/src/OEmbed/ProviderException.php
--- b/core/modules/media/src/OEmbed/ProviderException.php
+++ b/core/modules/media/src/OEmbed/ProviderException.php
@@ -12,9 +12,9 @@
   /**
    * Information about the oEmbed provider which caused the exception.
    *
-   * @see \Drupal\media\OEmbed\ProviderDiscoveryInterface::get()
-   *
    * @var array
+   *
+   * @see \Drupal\media\OEmbed\ProviderDiscoveryInterface::get()
    */
   protected $provider = [];
 
diff -u b/core/modules/media/src/OEmbed/ResourceException.php b/core/modules/media/src/OEmbed/ResourceException.php
--- b/core/modules/media/src/OEmbed/ResourceException.php
+++ b/core/modules/media/src/OEmbed/ResourceException.php
@@ -44,6 +44,7 @@
    * Gets the URL of the oEmbed resource which caused the exception.
    *
    * @return string
+   *   The URL of the oEmbed resource which caused the exception.
    */
   public function getUrl() {
     return $this->url;
@@ -53,6 +54,7 @@
    * Gets the oEmbed resource which caused the exception, if available.
    *
    * @return array
+   *   The oEmbed resource which caused the exception.
    */
   public function getResource() {
     return $this->resource;
diff -u b/core/modules/media/src/OEmbed/ResourceFetcher.php b/core/modules/media/src/OEmbed/ResourceFetcher.php
--- b/core/modules/media/src/OEmbed/ResourceFetcher.php
+++ b/core/modules/media/src/OEmbed/ResourceFetcher.php
@@ -121,6 +121,20 @@
     return $resource_url;
   }
 
+  /**
+   * Builds the endpoint URL with the oEmebed provider info and returns it.
+   *
+   * @param array $provider_info
+   *   Provider info returned form
+   *   Drupal\media\OEmbed\ProviderDiscoveryInterface::get().
+   * @param string $url
+   *   The canonical media URL.
+   *
+   * @return bool|string
+   *   URL of the oEmbed endpoint, or FALSE if the building was not successful.
+   *
+   * @throws \Drupal\media\OEmbed\ProviderException
+   */
   protected function buildResourceUrl(array $provider_info, $url) {
     if (empty($provider_info['endpoints'])) {
       throw new ProviderException('Provider @name does not define any endpoints.', $provider_info);
@@ -173,6 +187,17 @@
     return $this->findUrl($xpath, 'json') ?: $this->findUrl($xpath, 'xml');
   }
 
+  /**
+   * Tries to find the oEmbed URL in a DOM.
+   *
+   * @param \DOMXPath $xpath
+   *   Page HTML as DOMXPath.
+   * @param string $format
+   *   Format of oEmbed resource. Possible values are 'json' and 'xml'.
+   *
+   * @return bool|string
+   *   A URL to an oEmbed resource or FALSE if not found.
+   */
   protected function findUrl(\DOMXPath $xpath, $format) {
     $result = $xpath->query("//link[@type='application/$format+oembed']");
     return $result->length ? $result->item(0)->getAttribute('href') : FALSE;
diff -u b/core/modules/media/src/Plugin/Field/FieldFormatter/OEmbedFormatter.php b/core/modules/media/src/Plugin/Field/FieldFormatter/OEmbedFormatter.php
--- b/core/modules/media/src/Plugin/Field/FieldFormatter/OEmbedFormatter.php
+++ b/core/modules/media/src/Plugin/Field/FieldFormatter/OEmbedFormatter.php
@@ -7,8 +7,8 @@
 use Drupal\Core\Field\FormatterBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\media\Exception\ResourceException;
-use Drupal\media\ResourceFetcherInterface;
+use Drupal\media\OEmbed\ResourceException;
+use Drupal\media\OEmbed\ResourceFetcherInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -29,7 +29,7 @@
   /**
    * The oEmbed service.
    *
-   * @var \Drupal\media\ResourceFetcherInterface
+   * @var \Drupal\media\OEmbed\ResourceFetcherInterface
    */
   protected $oEmbed;
 
@@ -50,7 +50,7 @@
    *   The view mode.
    * @param array $third_party_settings
    *   Any third party settings settings.
-   * @param \Drupal\media\ResourceFetcherInterface $oembed
+   * @param \Drupal\media\OEmbed\ResourceFetcherInterface $oembed
    *   The oEmbed service.
    */
   public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, ResourceFetcherInterface $oembed) {
@@ -70,7 +70,7 @@
       $configuration['label'],
       $configuration['view_mode'],
       $configuration['third_party_settings'],
-      $container->get('media.oembed')
+      $container->get('media.oembed.resource_fetcher')
     );
   }
 
@@ -96,9 +96,14 @@
         try {
           $resource = $this->oEmbed->fetchResource($this->oEmbed->getResourceUrl($item->{$main_property}, $this->getSetting('maxwidth'), $this->getSetting('maxheight')));
           $element[$delta] = [
-            '#theme' => 'media_oembed',
-            '#post' => (string) $resource['html'],
+            '#markup' => $this->t('The oEmbed provider does not support a HTML output'),
           ];
+          if (!empty($resource['html'])) {
+            $element[$delta] = [
+              '#theme' => 'media_oembed',
+              '#post' => (string) $resource['html'],
+            ];
+          }
         }
         catch (ResourceException $exception) {
           drupal_set_message($this->t('Could not retrieve the remote URL.'), 'error');
diff -u b/core/modules/media/src/Plugin/media/Source/OEmbed.php b/core/modules/media/src/Plugin/media/Source/OEmbed.php
--- b/core/modules/media/src/Plugin/media/Source/OEmbed.php
+++ b/core/modules/media/src/Plugin/media/Source/OEmbed.php
@@ -233,7 +233,7 @@
    */
   public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
     parent::submitConfigurationForm($form, $form_state);
-    $this->configuration['allowed_providers'] = array_values($this->configuration['allowed_providers']);
+    $this->configuration['allowed_providers'] = array_filter(array_values($this->configuration['allowed_providers']));
   }
 
   /**