Make sure only "application/*" error pages are returned from the api

app/Exceptions/Filters/ApiFilter.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Cachet HQ <support@cachethq.io>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Exceptions\Filters;
+
+use Exception;
+use Illuminate\Http\Request;
+
+class ApiFilter
+{
+    /**
+     * The request instance.
+     *
+     * @var \Illuminate\Http\Request
+     */
+    protected $request;
+
+    /**
+     * Create a new content type filter instance.
+     *
+     * @param \Illuminate\Http\Request $request
+     *
+     * @return void
+     */
+    public function __construct(Request $request)
+    {
+        $this->request = $request;
+    }
+
+    /**
+     * Filter and return the displayers.
+     *
+     * @param \GrahamCampbell\Exceptions\Displayers\DisplayerInterface[] $displayers
+     * @param \Exception                                                 $exception
+     *
+     * @return \GrahamCampbell\Exceptions\Displayers\DisplayerInterface[]
+     */
+    public function filter(array $displayers, Exception $exception)
+    {
+        if ($this->request->is('api*')) {
+            foreach ($displayers as $index => $displayer) {
+                if (!str_contains($displayer->contentType(), 'application/')) {
+                    unset($displayers[$index]);
+                }
+            }
+        }
+
+        return array_values($displayers);
+    }
+}

config/exceptions.php

@@ -48,6 +48,7 @@ return [
         'GrahamCampbell\Exceptions\Filters\VerboseFilter',
         'GrahamCampbell\Exceptions\Filters\CanDisplayFilter',
         'GrahamCampbell\Exceptions\Filters\ContentTypeFilter',
+        'CachetHQ\Cachet\Exceptions\Filters\ApiFilter',
     ],
 
 ];