Issue #1410260 by swentel, mojzis, droplet, pingers: Fixed rss.xml/whatever triggers PHP error.

core/modules/node/lib/Drupal/node/Tests/NodeRSSContentTest.php

@@ -74,5 +74,9 @@ function testNodeRSSContent() {
     $this->drupalGet("node/$node->nid");
     $this->assertNoText($rss_only_content, t('Node content designed for RSS doesn\'t appear when viewing node.'));
 
+    // Check that the node feed page does not try to interpret additional path
+    // components as arguments for node_feed() and returns default content.
+    $this->drupalGet('rss.xml/' . $this->randomName() . '/' . $this->randomName());
+    $this->assertText($rss_only_content, t('Ignore page arguments when delivering rss.xml.'));
   }
 }

core/modules/node/node.module

@@ -1901,6 +1901,9 @@ function node_menu() {
   $items['rss.xml'] = array(
     'title' => 'RSS feed',
     'page callback' => 'node_feed',
+    // Pass a FALSE and array argument to ensure that additional path components
+    // are not passed to node_feed().
+    'page arguments' => array(FALSE, array()),
     'access arguments' => array('access content'),
     'type' => MENU_CALLBACK,
   );