polyfill import.meta.url (#639)

* polyfill import.meta.url

* review fix

* changeset

Author: conico974

.changeset/soft-rats-punch.md

@@ -0,0 +1,5 @@
+---
+"@opennextjs/cloudflare": patch
+---
+
+polyfill import.meta.url

packages/cloudflare/src/cli/templates/init.ts

@@ -61,6 +61,9 @@ function initRuntime() {
 
   globalThis.__dirname ??= "";
   globalThis.__filename ??= "";
+  // Some packages rely on `import.meta.url` but it is undefined in workerd
+  // For example it causes a bunch of issues, and will make even import crash with payload
+  import.meta.url ??= "file:///worker.js";
 
   // Do not crash on cache not supported
   // https://github.com/cloudflare/workerd/pull/2434