core/modules/rest/src/Plugin/ResourceBase.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/modules/rest/src/Plugin/ResourceBase.php b/core/modules/rest/src/Plugin/ResourceBase.php
index 3c2b866..a8a0220 100644
--- a/core/modules/rest/src/Plugin/ResourceBase.php
+++ b/core/modules/rest/src/Plugin/ResourceBase.php
@@ -132,6 +132,9 @@ public function routes() {
           $collection->add("$route_name.$method", $route);
           break;
 
+        case 'DELETE':
+          // No request body nor response body for DELETE requests, so also no
+          // need for a '_format' or '_content_type_format' requirement.
         default:
           $collection->add("$route_name.$method", $route);
           break;