fix(giscus): use worker script for CORS headers (#36)

Author: CalvinAllen

src/worker.ts

@@ -0,0 +1,21 @@
+export default {
+  async fetch(request: Request, env: { ASSETS: Fetcher }): Promise<Response> {
+    const url = new URL(request.url);
+
+    // Serve assets from the dist directory
+    const response = await env.ASSETS.fetch(request);
+
+    // Add CORS header for giscus theme CSS
+    if (url.pathname === '/giscus-theme.css') {
+      const newHeaders = new Headers(response.headers);
+      newHeaders.set('Access-Control-Allow-Origin', 'https://giscus.app');
+      return new Response(response.body, {
+        status: response.status,
+        statusText: response.statusText,
+        headers: newHeaders,
+      });
+    }
+
+    return response;
+  },
+};

wrangler.toml

@@ -1,5 +1,7 @@
 name = "codingwithcalvin-net"
 compatibility_date = "2024-12-01"
+main = "src/worker.ts"
 
 [assets]
 directory = "./dist"
+binding = "ASSETS"