From 8484bf8182db0ddd24df8e2138a87fa138135765 Mon Sep 17 00:00:00 2001
From: Yong Wen Chua <lawliet89@users.noreply.github.com>
Date: Fri, 22 Mar 2024 10:47:05 +0800
Subject: [PATCH] Omit `remove_headers_config` if no headers to remove (#5)

Fix permanent diff
---
 modules/response-headers/main.tf | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/modules/response-headers/main.tf b/modules/response-headers/main.tf
index b7da4ef..8a03eea 100644
--- a/modules/response-headers/main.tf
+++ b/modules/response-headers/main.tf
@@ -47,12 +47,16 @@ resource "aws_cloudfront_response_headers_policy" "this" {
     }
   }
 
-  remove_headers_config {
-    dynamic "items" {
-      for_each = var.remove_headers
+  dynamic "remove_headers_config" {
+    for_each = length(var.remove_headers) > 0 ? [1] : []
 
-      content {
-        header = items.value
+    content {
+      dynamic "items" {
+        for_each = var.remove_headers
+
+        content {
+          header = items.value
+        }
       }
     }
   }