fix(ssr): fix dynamic slot regression in ssr

fix #6651
2022-09-28 10:24:57 +08:00 · 2022-09-28 10:24:57 +08:00 · 8963c5508c
parent 9698dd3cf1
commit 8963c5508c
1 changed files with 2 additions and 1 deletions
--- a/packages/runtime-core/src/helpers/createSlots.ts
+++ b/packages/runtime-core/src/helpers/createSlots.ts
@ -33,7 +33,8 @@ export function createSlots(
            const res = slot.fn(...args)
            // attach branch key so each conditional branch is considered a
            // different fragment
-            ;(res as any).key = slot.key
+            // #6651 res can be undefined in SSR in string push mode
+            if (res) (res as any).key = slot.key
            return res
          }
        : slot.fn