---
title: esi.allow_inside_cdata
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/variables/esi/esi-allow-inside-cdata
---

**Type:** BOOL  
**Access:** can be read and set, but not unset

**Available in:** recv, fetch, deliver, error

Whether or not to look for ESI tags within CDATA.