diff --git a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageUrlFormatter.php b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageUrlFormatter.php
index 8902352..e755a18 100644
--- a/core/modules/image/src/Plugin/Field/FieldFormatter/ImageUrlFormatter.php
+++ b/core/modules/image/src/Plugin/Field/FieldFormatter/ImageUrlFormatter.php
@@ -40,10 +40,10 @@ public static function defaultSettings() {
   public function settingsForm(array $form, FormStateInterface $form_state) {
     $image_styles = image_style_options(FALSE);
     $element['image_style'] = [
-      '#title' => t('Image style'),
+      '#title' => $this->t('Image style'),
       '#type' => 'select',
       '#default_value' => $this->getSetting('image_style'),
-      '#empty_option' => t('None (original image)'),
+      '#empty_option' => $this->t('None (original image)'),
       '#options' => $image_styles,
       '#description' => [
         '#markup' => $this->linkGenerator->generate($this->t('Configure Image Styles'), new Url('entity.image_style.collection')),
@@ -67,10 +67,10 @@ public function settingsSummary() {
     // their styles in code.
     $image_style_setting = $this->getSetting('image_style');
     if (isset($image_styles[$image_style_setting])) {
-      $summary[] = t('Image style: @style', ['@style' => $image_styles[$image_style_setting]]);
+      $summary[] = $this->t('Image style: @style', ['@style' => $image_styles[$image_style_setting]]);
     }
     else {
-      $summary[] = t('Original image');
+      $summary[] = $this->t('Original image');
     }
   }
 
@@ -90,13 +90,10 @@ public function viewElements(FieldItemListInterface $items) {
 
     $image_style_setting = $this->getSetting('image_style');
 
-    // Collect cache tags to be added for each item in the field.
-    $cache_tags = [];
     /** @var \Drupal\image\Entity\ImageStyle|false $image_style */
     $image_style = FALSE;
     if (!empty($image_style_setting)) {
       $image_style = $this->imageStyleStorage->load($image_style_setting);
-      $cache_tags = $image_style->getCacheTags();
     }
 
     foreach ($images as $delta => $image) {
@@ -106,7 +103,9 @@ public function viewElements(FieldItemListInterface $items) {
         ? $image_style->buildUrl($image_uri)
         : file_create_url($image_uri);
 
-      $cache_tags = Cache::mergeTags($cache_tags, $image->getCacheTags());
+      $cache_tags = $image_style
+        ? Cache::mergeTags($image->getCacheTags(), $image_style->getCacheTags())
+        : $image->getCacheTags();
 
       $elements[$delta] = [
         '#markup' => $url,