1 files changed, 5 insertions, 0 deletions
diff --git a/tests/http/payload.php b/tests/http/payload.php
index a16984c5..52c0f819 100644
--- a/tests/http/payload.php
+++ b/tests/http/payload.php
@@ -5,6 +5,11 @@ use Psr\Http\Message\ServerRequestInterface;
 
 function handleRequest(ServerRequestInterface $req, ResponseInterface $resp): ResponseInterface
 {
+    if ( $req->getHeaderLine("Content-Type") != 'application/json' ) {
+        $resp->getBody()->write("invalid content-type");
+        return $resp;
+    }
+
     // we expect json body
     $p = json_decode($req->getBody(), true);
     $resp->getBody()->write(json_encode(array_flip($p)));