silenced exception throwed by FormaNegotiator

src/Middleware/FormatNegotiator.php

@@ -129,7 +129,12 @@ protected function getFromHeader(ServerRequestInterface $request)
         }
 
         $priorities = call_user_func_array('array_merge', array_values($this->formats));
-        $accept = (new Negotiator())->getBest($accept, $priorities);
+
+        try {
+            $accept = (new Negotiator())->getBest($accept, $priorities);
+        } catch (\Exception $exception) {
+            return;
+        }
 
         if ($accept) {
             $accept = $accept->getValue();

tests/FormatNegotiatorTest.php

@@ -24,6 +24,10 @@ public function formatsProvider()
                 '/',
                 'application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5',
                 'html',
+            ],[
+                '/',
+                'text/html, image/gif, image/jpeg, *; q=0.2, */*; q=0.2',
+                'html',
             ],
         ];
     }