chore(astro): Add backwards compatibility for ignoring prerendered routes in Astro middleware (#4694)

Author: wobsoriano

.changeset/tame-lamps-rule.md

@@ -0,0 +1,5 @@
+---
+"@clerk/astro": patch
+---
+
+Add backwards compatibility for ignoring prerendered routes in Astro

packages/astro/src/server/clerk-middleware.ts

@@ -62,7 +62,7 @@ export const clerkMiddleware: ClerkMiddleware = (...args: unknown[]): any => {
 
   const astroMiddleware: AstroMiddleware = async (context, next) => {
     // if the current page is prerendered, do nothing
-    if ('isPrerendered' in context && context.isPrerendered) {
+    if (isPrerenderedPage(context)) {
       return next();
     }
 
@@ -129,6 +129,15 @@ export const clerkMiddleware: ClerkMiddleware = (...args: unknown[]): any => {
   return astroMiddleware;
 };
 
+const isPrerenderedPage = (context: APIContext) => {
+  return (
+    // for Astro v5
+    ('isPrerendered' in context && context.isPrerendered) ||
+    // for Astro v4
+    ('_isPrerendered' in context && context._isPrerendered)
+  );
+};
+
 // TODO-SHARED: Duplicate from '@clerk/nextjs'
 const parseHandlerAndOptions = (args: unknown[]) => {
   return [