diff --git a/README.md b/README.md
index 1fad068..9ae1048 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ Install from any of the following locations:
 Default values are shown with the associated environment variable.
 
 ```bash
+# Enables resource access from any domain.
+CORS=false
+
 # Enable debugging for troubleshooting. If set to 'true' this prints extra
 # information during execution. IMPORTANT NOTE: The configuration summary is
 # printed to stdout while logs generated during execution are printed to stderr.
@@ -69,6 +72,7 @@ show-listing: true
 tls-cert: ""
 tls-key: ""
 url-prefix: ""
+cors: false
 ```
 
 Example configuration with possible alternative values:
diff --git a/cli/help/help.go b/cli/help/help.go
index 6f8a3fa..d8faff1 100644
--- a/cli/help/help.go
+++ b/cli/help/help.go
@@ -33,6 +33,10 @@ DEPENDENCIES
     None... not even libc!
 
 ENVIRONMENT VARIABLES
+    CORS
+        When set to 'true' it enables resource access from any domain. All responses
+        will include the headers 'Access-Control-Allow-Origin' and 'Access-Control-Allow-Headers'
+        with a wildcard value ('*').
     DEBUG
         When set to 'true' enables additional logging, including the
         configuration used and an access log for each request. IMPORTANT NOTE:
@@ -94,6 +98,7 @@ CONFIGURATION FILE
     tls-cert: ""
     tls-key: ""
     url-prefix: ""
+    cors: false
     ----------------------------------------------------------------------------
 
     Example config.yml with possible alternative values: