Document "insecure http headers" override

README.md

@@ -58,6 +58,9 @@ Run:
 RUST_LOG=pod=debug,info cargo run
 ```
 
+To set `Access-Control-Allow-Origin` HTTP header to `*`,
+the the environment variable `INSECURE_HTTP_HEADERS` to any value.
+
 You can read about various components of the server:
 
 * Memri project: [blog.memri.io](https://blog.memri.io/)

src/warp_api.rs

@@ -15,7 +15,7 @@ pub async fn run_server(sqlite_pool: Pool<SqliteConnectionManager>) {
     info!("Starting {} HTTP server", package_name);
 
     let mut headers = HeaderMap::new();
-    if std::env::var_os("INSECURE_ACCESS").is_some() {
+    if std::env::var_os("INSECURE_HTTP_HEADERS").is_some() {
         info!("Adding Access-Control-Allow-Origin header as per environment config");
         headers.insert("Access-Control-Allow-Origin", HeaderValue::from_static("*"));
     }