protect against no parent node (#1445)

daibhin · web-flow · commit 02f50d260cfe · 2024-04-10T16:46:06.000+01:00
* protect against a missing parent node during a mutation on an textNode
diff --git a/.changeset/three-baboons-bow.md b/.changeset/three-baboons-bow.md
@@ -0,0 +1,5 @@
+---
+'rrweb': patch
+---
+
+fix: protect against missing parentNode
diff --git a/packages/rrweb/src/record/mutation.ts b/packages/rrweb/src/record/mutation.ts
@@ -441,7 +441,10 @@ export default class MutationBuffer {
       texts: this.texts
         .map((text) => {
           const n = text.node;
-          if ((n.parentNode as Element).tagName === 'TEXTAREA') {
+          if (
+            n.parentNode &&
+            (n.parentNode as Element).tagName === 'TEXTAREA'
+          ) {
             // the node is being ignored as it isn't in the mirror, so shift mutation to attributes on parent textarea
             this.genTextAreaValueMutation(n.parentNode as HTMLTextAreaElement);
           }

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +'rrweb': patch
 +---
++
 +fix: protect against missing parentNode