chore(runtime-core): explain the async element initialVNode.el patching

vuejs · Nov 3, 2023 · eac3602 · eac3602
1 parent 19d8b77
commit eac3602
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/packages/runtime-core/src/renderer.ts b/packages/runtime-core/src/renderer.ts
@@ -1235,6 +1235,9 @@ function baseCreateRenderer(
       if (!initialVNode.el) {
         const placeholder = (instance.subTree = createVNode(Comment))
         processCommentNode(null, placeholder, container!, anchor)
+        // This noramlly gets setup by the following `setupRenderEffect`.
+        // But the call is skipped in initial mounting of async element.
+        // Thus, manually patching is required here or it will result in a crash during parent component update.
         initialVNode.el = placeholder.el
       }
       return