Update to Drupal 8.0.3. For more information, see https://www.drupal.org/drupal-8.0.3-release-notes

core/modules/rest/src/Plugin/Deriver/EntityDeriver.php

@@ -33,7 +33,7 @@ class EntityDeriver implements ContainerDeriverInterface {
   protected $entityManager;
 
   /**
-   * Constructs an EntityDerivative object.
+   * Constructs an EntityDeriver object.
    *
    * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
    *   The entity manager.
@@ -86,7 +86,7 @@ class EntityDeriver implements ContainerDeriverInterface {
           // Check if there are link templates defined for the entity type and
           // use the path from the route instead of the default.
           if ($link_template = $entity_type->getLinkTemplate($link_relation)) {
-            $this->derivatives[$entity_type_id]['uri_paths'][$link_relation] = '/' . $link_template;
+            $this->derivatives[$entity_type_id]['uri_paths'][$link_relation] = $link_template;
           }
           else {
             $this->derivatives[$entity_type_id]['uri_paths'][$link_relation] = $default_uri;

core/modules/rest/src/Plugin/rest/resource/EntityResource.php

@@ -29,7 +29,7 @@ use Symfony\Component\HttpKernel\Exception\HttpException;
  *   }
  * )
  *
- * @see \Drupal\rest\Plugin\Derivative\EntityDerivative
+ * @see \Drupal\rest\Plugin\Deriver\EntityDeriver
  */
 class EntityResource extends ResourceBase {
 

core/modules/rest/src/Plugin/views/row/DataFieldRow.php

@@ -88,6 +88,10 @@ class DataFieldRow extends RowPluginBase {
 
     if ($fields = $this->view->display_handler->getOption('fields')) {
       foreach ($fields as $id => $field) {
+        // Don't show the field if it has been excluded.
+        if (!empty($field['exclude'])) {
+          continue;
+        }
         $form['field_options'][$id]['field'] = array(
           '#markup' => $id,
         );
@@ -138,6 +142,10 @@ class DataFieldRow extends RowPluginBase {
     $output = array();
 
     foreach ($this->view->field as $id => $field) {
+      // Don't render anything if this field is excluded.
+      if (!empty($field->options['exclude'])) {
+        continue;
+      }
       // If the raw output option has been set, just get the raw value.
       if (!empty($this->rawOutputOptions[$id])) {
         $value = $field->getValue($row);

core/modules/rest/src/Tests/ResourceTest.php

@@ -106,4 +106,19 @@ class ResourceTest extends RESTTestBase {
     $this->curlClose();
   }
 
+  /**
+   * Tests that resource URI paths are formatted properly.
+   */
+  public function testUriPaths() {
+    $this->enableService('entity:entity_test');
+    /** @var \Drupal\rest\Plugin\Type\ResourcePluginManager $manager */
+    $manager = \Drupal::service('plugin.manager.rest');
+
+    foreach ($manager->getDefinitions() as $resource => $definition) {
+      foreach ($definition['uri_paths'] as $key => $uri_path) {
+        $this->assertFalse(strpos($uri_path, '//'), 'The resource URI path does not have duplicate slashes.');
+      }
+    }
+  }
+
 }

core/modules/rest/src/Tests/Views/StyleSerializerTest.php

@@ -470,6 +470,32 @@ class StyleSerializerTest extends PluginTestBase {
       $this->assertIdentical($values['created'], $view->result[$index]->views_test_data_created, 'Expected raw created value found.');
       $this->assertIdentical($values['name'], $view->result[$index]->views_test_data_name, 'Expected raw name value found.');
     }
+
+    // Test result with an excluded field.
+    $view->setDisplay('rest_export_1');
+    $view->displayHandlers->get('rest_export_1')->overrideOption('fields', [
+      'name' => [
+        'id' => 'name',
+        'table' => 'views_test_data',
+        'field' => 'name',
+        'relationship' => 'none',
+      ],
+      'created' => [
+        'id' => 'created',
+        'exclude' => TRUE,
+        'table' => 'views_test_data',
+        'field' => 'created',
+        'relationship' => 'none',
+      ],
+    ]);
+    $view->save();
+    $this->executeView($view);
+    foreach ($this->drupalGetJSON('test/serialize/field') as $index => $values) {
+      $this->assertTrue(!isset($values['created']), 'Excluded value not found.');
+    }
+    // Test that the excluded field is not shown in the row options.
+    $this->drupalGet('admin/structure/views/nojs/display/test_serializer_display_field/rest_export_1/row_options');
+    $this->assertNoText('created');
   }
 
   /**