Make error messages accessible

application/controllers/ErrorController.php

@@ -3,7 +3,6 @@
 
 namespace Icinga\Controllers;
 
-use Icinga\Web\Response\JsonResponse;
 use Zend_Controller_Plugin_ErrorHandler;
 use Icinga\Application\Icinga;
 use Icinga\Application\Logger;
@@ -13,6 +12,7 @@ use Icinga\Exception\Http\HttpNotFoundException;
 use Icinga\Exception\MissingParameterException;
 use Icinga\Security\SecurityException;
 use Icinga\Web\Controller\ActionController;
+use Icinga\Web\Url;
 
 /**
  * Application wide controller for displaying exceptions
@@ -100,6 +100,15 @@ class ErrorController extends ActionController
         }
 
         $this->view->request = $error->request;
-        $this->view->hideControls = ! $isAuthenticated;
+        if (! $isAuthenticated) {
+            $this->view->hideControls = true;
+        } else {
+            $this->view->hideControls = false;
+            $this->getTabs()->add('error', array(
+                'active'    => true,
+                'label'     => $this->translate('Error'),
+                'url'       => Url::fromRequest()
+            ));
+        }
     }
 }

application/views/scripts/error/error.phtml

@@ -1,12 +1,12 @@
 <?php if (! $this->compact && ! $hideControls): ?>
 <div class="controls">
-    <?= $tabs->showOnlyCloseButton() ?>
+    <?= $tabs ?>
 </div>
 <?php endif ?>
 <div class="content">
-    <p class="autofocus error-message"><?= nl2br($this->escape($message)) ?></p>
-    <?php if (isset($stackTrace)): ?>
-        <hr />
+    <p tabindex="-1" class="autofocus error-message"><?= nl2br($this->escape($message)) ?></p>
+<?php if (isset($stackTrace)): ?>
+    <hr>
     <pre><?= $this->escape($stackTrace) ?></pre>
-    <?php endif ?>
+<?php endif ?>
 </div>

public/css/icinga/layout.less

@@ -113,8 +113,10 @@
   background-color: @gray-lighter;
 }
 
-.container {
-  // Don't outline containers when focused because they receive focus for accessibility only programmatically
+.container,
+.error-message {
+  // Don't outline containers and error messages when focused because they receive focus for accessibility only
+  // programmatically
   outline: none;
 }