Update config and fix tests for xkey glue

Author: silverbackdan

features/bootstrap/ProfilerContext.php

@@ -178,10 +178,8 @@ public function theResourceShouldBePurgedFromTheCache(string $resourceName)
                     $iri = preg_replace('/^xkey\: /', '', $xkeyHeader->getValue());
                     $iris = explode(' ', $iri);
                     array_push($purged, ...$iris);
-                    foreach ($iris as $purgedIri) {
-                        if ($purgedIri === $expectedIri) {
-                            return true;
-                        }
+                    if (in_array($expectedIri, $iris, true)) {
+                        return true;
                     }
                 }
             }

tests/Functional/app/config/packages/api_platform.yaml

@@ -14,5 +14,5 @@ api_platform:
             enabled: true
             varnish_urls: [ 'http://test' ]
             xkey:
-                glue: ', '
+                glue: ' '
         public: true