diff --git a/http/headers/content-length.json b/http/headers/content-length.json
index a5d45239ece5bb..507c9522f3c9a0 100644
--- a/http/headers/content-length.json
+++ b/http/headers/content-length.json
@@ -47,6 +47,54 @@
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "cors_response_safelist": {
+          "__compat": {
+            "description": "CORS-safelisted response header",
+            "support": {
+              "chrome": {
+                "version_added": "76"
+              },
+              "chrome_android": {
+                "version_added": "76"
+              },
+              "edge": {
+                "version_added": "≤79"
+              },
+              "firefox": {
+                "version_added": "87"
+              },
+              "firefox_android": {
+                "version_added": "87"
+              },
+              "ie": {
+                "version_added": null
+              },
+              "opera": {
+                "version_added": "63"
+              },
+              "opera_android": {
+                "version_added": "54"
+              },
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": {
+                "version_added": false
+              },
+              "samsunginternet_android": {
+                "version_added": "12.0"
+              },
+              "webview_android": {
+                "version_added": "76"
+              }
+            },
+            "status": {
+              "experimental": false,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }