diff --git a/core/modules/rest/src/Plugin/views/display/RestExport.php b/core/modules/rest/src/Plugin/views/display/RestExport.php
index d14100e..7b0e755 100644
--- a/core/modules/rest/src/Plugin/views/display/RestExport.php
+++ b/core/modules/rest/src/Plugin/views/display/RestExport.php
@@ -267,7 +267,9 @@ public function collectRoutes(RouteCollection $collection) {
 
       // Format as a string using pipes as a delimiter.
       if ($formats = $style_plugin->getFormats()) {
-        $requirements['_format'] = implode('|', $formats);
+        // Always allow to at least access the page via HTML. This will return
+        // The first non HTML format which is configured/available.
+        $requirements['_format'] = implode('|', $formats + ['html']);
       }
 
       // Add the new requirements to the route.