From 8675baf1aefa9cdb6449e9f5155404aa8fde1c32 Mon Sep 17 00:00:00 2001
From: noxe <ma_praxmarer@hotmail.com>
Date: Tue, 21 Dec 2021 19:11:06 +0100
Subject: [PATCH] fixes an exception is no history is available (#2621)

Co-authored-by: Martin <mp@prakom.net>
---
 .../elsa-workflow-definition-editor-screen.tsx                | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/designer/elsa-workflows-studio/src/components/screens/workflow-definition-editor/elsa-workflow-definition-editor-screen/elsa-workflow-definition-editor-screen.tsx b/src/designer/elsa-workflows-studio/src/components/screens/workflow-definition-editor/elsa-workflow-definition-editor-screen/elsa-workflow-definition-editor-screen.tsx
index af0a883af..011425eac 100644
--- a/src/designer/elsa-workflows-studio/src/components/screens/workflow-definition-editor/elsa-workflow-definition-editor-screen/elsa-workflow-definition-editor-screen.tsx
+++ b/src/designer/elsa-workflows-studio/src/components/screens/workflow-definition-editor/elsa-workflow-definition-editor-screen/elsa-workflow-definition-editor-screen.tsx
@@ -385,7 +385,9 @@ export class ElsaWorkflowDefinitionEditorScreen {
   }
 
   updateUrl(id) {
-    this.history.push(`${this.basePath}/workflow-definitions/${id}`, {});
+    if (this.history) {
+      this.history.push(`${this.basePath}/workflow-definitions/${id}`, {});
+    }
   }
 
   mapWorkflowModel(workflowDefinition: WorkflowDefinition): WorkflowModel {