Update astro.config.mjs

Author: userdocs

docs/astro.config.mjs

@@ -4,20 +4,26 @@ import { ExpressiveCodeTheme } from "@astrojs/starlight/expressive-code";
 import fs from "node:fs";
 import starlightImageZoom from "starlight-image-zoom";
 
-const jsoncStringLight = fs.readFileSync(
+function readFileSyncSafe(url) {
+	if (url.protocol === "file:") {
+		return fs.readFileSync(url, "utf-8");
+	} else {
+		throw new Error("Invalid URL protocol");
+	}
+}
+
+const jsoncStringLight = readFileSyncSafe(
 	new URL(
 		"./src/themes/expressive-code/Snazzy-Light-color-theme.json",
 		import.meta.url
-	),
-	"utf-8"
+	)
 );
 
-const jsoncStringDark = fs.readFileSync(
+const jsoncStringDark = readFileSyncSafe(
 	new URL(
 		"./src/themes/expressive-code/aura-soft-dark-soft-text-color-theme.json",
 		import.meta.url
-	),
-	"utf-8"
+	)
 );
 
 const darkMode = ExpressiveCodeTheme.fromJSONString(jsoncStringDark);