diff --git a/code/controllers/AssetAdmin.php b/code/controllers/AssetAdmin.php
index c72f09ca..57f875c1 100644
--- a/code/controllers/AssetAdmin.php
+++ b/code/controllers/AssetAdmin.php
@@ -445,8 +445,8 @@ JS
 	 */
 	public function doSync() {
 		$message = Filesystem::sync();
-		FormResponse::status_message($message, 'good');
-		echo FormResponse::respond();
+		$this->response->addHeader('X-Status', $message);
+		return;
 	}
 	
 	/**
@@ -474,8 +474,8 @@ JS
 		}
 		
 		$message = sprintf(_t('AssetAdmin.THUMBSDELETED', '%s unused thumbnails have been deleted'), $count);
-		FormResponse::status_message($message, 'good');
-		echo FormResponse::respond();
+		$this->response->addHeader('X-Status', $message);
+		return;
 	}
 	
 	/**
diff --git a/code/controllers/ReportAdmin.php b/code/controllers/ReportAdmin.php
index fdbb4d75..8e3f370e 100644
--- a/code/controllers/ReportAdmin.php
+++ b/code/controllers/ReportAdmin.php
@@ -94,8 +94,8 @@ class ReportAdmin extends LeftAndMain implements PermissionProvider {
 	}
 	
 	public function updatereport() {
-		FormResponse::load_form($this->EditForm()->forTemplate());
-		return FormResponse::respond();
+		// FormResponse::load_form($this->EditForm()->forTemplate());
+		// return FormResponse::respond();
 	}
 
 	function providePermissions() {
diff --git a/code/model/ErrorPage.php b/code/model/ErrorPage.php
index 33aecfc8..0cd7342d 100644
--- a/code/model/ErrorPage.php
+++ b/code/model/ErrorPage.php
@@ -209,9 +209,8 @@ class ErrorPage extends Page {
 				),
 				$errorFile
 			);
-			FormResponse::status_message($fileErrorText, 'bad');
-			FormResponse::respond();
-			return;
+			$this->response->addHeader('X-Status', $fileErrorText);
+			return $this->httpError(405);
 		}
 	}