From ecf04769393af9b092de07b9ab704bc423f8feb5 Mon Sep 17 00:00:00 2001
From: moklick <info@moritzklack.com>
Date: Tue, 23 Aug 2022 18:09:57 +0200
Subject: [PATCH] fix(edges): use default type if type is invalid

---
 packages/core/src/container/EdgeRenderer/index.tsx | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/container/EdgeRenderer/index.tsx b/packages/core/src/container/EdgeRenderer/index.tsx
index 98b4e947..4b51658b 100644
--- a/packages/core/src/container/EdgeRenderer/index.tsx
+++ b/packages/core/src/container/EdgeRenderer/index.tsx
@@ -99,7 +99,16 @@ const EdgeRenderer = (props: EdgeRendererProps) => {
                 return null;
               }
 
-              const edgeType = edge.type || 'default';
+              let edgeType = edge.type || 'default';
+
+              if (!props.edgeTypes[edgeType]) {
+                devWarn(
+                  `Edge type "${edgeType}" not found. Using fallback type "default". Help: https://reactflow.dev/error#300`
+                );
+
+                edgeType = 'default';
+              }
+
               const EdgeComponent = props.edgeTypes[edgeType] || props.edgeTypes.default;
               // when connection type is loose we can define all handles as sources
               const targetNodeHandles =