fixes #44

controllers/releases.php

@@ -174,7 +174,7 @@ final class ReleasesController extends \TracToGitlab\Controller
         $headers = [];
         while (($line = strtok("\r\n")) !== false) {
             $chunks = explode(':', $line, 2);
-            if ($chunks !== false) {
+            if ($chunks !== false && count($chunks) === 2) {
                 $headers[$chunks[0]] = $chunks[1];
             }
         }