diff --git a/core/modules/field/modules/email/lib/Drupal/email/Plugin/field/widget/EmailDefaultWidget.php b/core/modules/field/modules/email/lib/Drupal/email/Plugin/field/widget/EmailDefaultWidget.php
index dbbcccd..de60358 100644
--- a/core/modules/field/modules/email/lib/Drupal/email/Plugin/field/widget/EmailDefaultWidget.php
+++ b/core/modules/field/modules/email/lib/Drupal/email/Plugin/field/widget/EmailDefaultWidget.php
@@ -36,7 +36,7 @@ public function settingsForm(array $form, array &$form_state) {
       '#type' => 'textfield',
       '#title' => t('Placeholder'),
       '#default_value' => $this->getSetting('placeholder'),
-      '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+      '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     );
     return $element;
   }
diff --git a/core/modules/field/modules/link/link.module b/core/modules/field/modules/link/link.module
index 80f70af..0e204df 100644
--- a/core/modules/field/modules/link/link.module
+++ b/core/modules/field/modules/link/link.module
@@ -98,8 +98,8 @@ function link_field_widget_info() {
     'label' => 'Link',
     'field types' => array('link'),
     'settings' => array(
-      'placeholder_title',
-      'placeholder_url',
+      'placeholder_title' => '',
+      'placeholder_url' => '',
     ),
   );
   return $widgets;
@@ -115,14 +115,14 @@ function link_field_widget_settings_form($field, $instance) {
   $form['placeholder_url'] = array(
     '#type' => 'textfield',
     '#title' => t('Placeholder for URL'),
-    '#default_value' => isset($settings['placeholder_url']) ? $settings['placeholder_url'] : '',
-    '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+    '#default_value' => $settings['placeholder_url'],
+    '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
   );
   $form['placeholder_title'] = array(
     '#type' => 'textfield',
     '#title' => t('Placeholder for link title'),
-    '#default_value' => isset($settings['placeholder_title']) ? $settings['placeholder_title'] : '',
-    '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+    '#default_value' => $settings['placeholder_title'],
+    '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     '#states' => array(
       'invisible' => array(
         ':input[name="instance[settings][title]"]' => array('value' => DRUPAL_DISABLED),
diff --git a/core/modules/field/modules/number/lib/Drupal/number/Plugin/field/widget/NumberWidget.php b/core/modules/field/modules/number/lib/Drupal/number/Plugin/field/widget/NumberWidget.php
index 4fd6afa..ec9eaf6 100644
--- a/core/modules/field/modules/number/lib/Drupal/number/Plugin/field/widget/NumberWidget.php
+++ b/core/modules/field/modules/number/lib/Drupal/number/Plugin/field/widget/NumberWidget.php
@@ -38,7 +38,7 @@ public function settingsForm(array $form, array &$form_state) {
       '#type' => 'textfield',
       '#title' => t('Placeholder'),
       '#default_value' => $this->getSetting('placeholder'),
-      '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+      '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     );
     return $element;
   }
diff --git a/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextareaWidget.php b/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextareaWidget.php
index db2efda..1ab4184 100644
--- a/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextareaWidget.php
+++ b/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextareaWidget.php
@@ -44,7 +44,7 @@ public function settingsForm(array $form, array &$form_state) {
       '#type' => 'textfield',
       '#title' => t('Placeholder'),
       '#default_value' => $this->getSetting('placeholder'),
-      '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+      '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     );
     return $element;
   }
diff --git a/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextfieldWidget.php b/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextfieldWidget.php
index 0a8b4dd..00396ae 100644
--- a/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextfieldWidget.php
+++ b/core/modules/field/modules/text/lib/Drupal/text/Plugin/field/widget/TextfieldWidget.php
@@ -44,7 +44,7 @@ public function settingsForm(array $form, array &$form_state) {
       '#type' => 'textfield',
       '#title' => t('Placeholder'),
       '#default_value' => $this->getSetting('placeholder'),
-      '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+      '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     );
     return $element;
   }
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/field/widget/TaxonomyAutocompleteWidget.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/field/widget/TaxonomyAutocompleteWidget.php
index 2d4306b..096b689 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/field/widget/TaxonomyAutocompleteWidget.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/field/widget/TaxonomyAutocompleteWidget.php
@@ -39,7 +39,7 @@ public function settingsForm(array $form, array &$form_state) {
       '#type' => 'textfield',
       '#title' => t('Placeholder'),
       '#default_value' => $this->getSetting('placeholder'),
-      '#description' => t('The placeholder attribute represents a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
+      '#description' => t('The placeholder is a short hint (a word or short phrase) intended to aid the user with data entry. A hint could be a sample value or a brief description of the expected format.'),
     );
     return $element;
   }