diff --git a/rewriter/src/lib.rs b/rewriter/src/lib.rs
index ace3913..d6da266 100644
--- a/rewriter/src/lib.rs
+++ b/rewriter/src/lib.rs
@@ -33,7 +33,11 @@ fn create_encode_function(encode: JsValue) -> EncodeFn {
 	})
 }
 
-fn get_str(config: &Object, k: &str) -> String {
+fn get_obj(config: &JsValue, k: &str) -> JsValue {
+	Reflect::get(config, &k.into()).unwrap()
+}
+
+fn get_str(config: &JsValue, k: &str) -> String {
 	Reflect::get(config, &k.into())
 		.unwrap()
 		.as_string()
@@ -43,7 +47,7 @@ fn get_str(config: &Object, k: &str) -> String {
 fn get_config(config: Object) -> Config {
 	Config {
 		prefix: get_str(&config, "prefix"),
-		encode: create_encode_function(Reflect::get(&config, &"encode".into()).unwrap()),
+		encode: create_encode_function(get_obj(&get_obj(&config, "codec"), "encode")),
 		wrapfn: get_str(&config, "wrapfn"),
 		importfn: get_str(&config, "importfn"),
 		rewritefn: get_str(&config, "rewritefn"),
diff --git a/src/shared/rewriters/js.ts b/src/shared/rewriters/js.ts
index 25064d2..1cbd579 100644
--- a/src/shared/rewriters/js.ts
+++ b/src/shared/rewriters/js.ts
@@ -24,21 +24,15 @@ export function rewriteJs(js: string | ArrayBuffer, origin?: URL) {
 	if ("window" in globalThis) origin ??= new URL(decodeUrl(location.href));
 
 	const before = performance.now();
-	const cfg = {
-		prefix: self.$scramjet.config.prefix,
-		codec: self.$scramjet.config.codec.encode,
-		wrapfn: self.$scramjet.config.wrapfn,
-		trysetfn: self.$scramjet.config.trysetfn,
-		importfn: self.$scramjet.config.importfn,
-		rewritefn: self.$scramjet.config.rewritefn,
-	};
 	if (typeof js === "string") {
-		js = new TextDecoder().decode(rewrite_js(js, origin.toString(), cfg));
+		js = new TextDecoder().decode(
+			rewrite_js(js, origin.toString(), self.$scramjet.config)
+		);
 	} else {
 		js = rewrite_js_from_arraybuffer(
 			new Uint8Array(js),
 			origin.toString(),
-			cfg
+			self.$scramjet.config
 		);
 	}
 	const after = performance.now();