Fix error when accessing clientAddress on prerendered routes (#10977)

.changeset/breezy-lies-sparkle.md

@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Improve error message when accessing `clientAddress` on prerendered routes

packages/astro/src/core/errors/errors-data.ts

@@ -66,6 +66,19 @@ export const ClientAddressNotAvailable = {
 	message: (adapterName: string) =>
 		`\`Astro.clientAddress\` is not available in the \`${adapterName}\` adapter. File an issue with the adapter to add support.`,
 } satisfies ErrorData;
+/**
+ * @docs
+ * @see
+ * - [Opting-in to pre-rendering](https://docs.astro.build/en/guides/server-side-rendering/#opting-in-to-pre-rendering-in-server-mode)
+ * - [Astro.clientAddress](https://docs.astro.build/en/reference/api-reference/#astroclientaddress)
+ * @description
+ * The `Astro.clientAddress` property cannot be used inside prerendered routes.
+ */
+export const PrerenderClientAddressNotAvailable = {
+	name: 'PrerenderClientAddressNotAvailable',
+	title: '`Astro.clientAddress` cannot be used inside prerendered routes.',
+	message: `\`Astro.clientAddress\` cannot be used inside prerendered routes`,
+} satisfies ErrorData;
 /**
  * @docs
  * @see

packages/astro/src/core/render-context.ts

@@ -455,14 +455,21 @@ export class RenderContext {
 		if (clientAddressSymbol in request) {
 			return Reflect.get(request, clientAddressSymbol) as string;
 		}
-		if (pipeline.adapterName) {
-			throw new AstroError({
-				...AstroErrorData.ClientAddressNotAvailable,
-				message: AstroErrorData.ClientAddressNotAvailable.message(pipeline.adapterName),
-			});
-		} else {
-			throw new AstroError(AstroErrorData.StaticClientAddressNotAvailable);
+
+		if (pipeline.serverLike) {
+			if (request.body === null) {
+				throw new AstroError(AstroErrorData.PrerenderClientAddressNotAvailable);
+			}
+
+			if (pipeline.adapterName) {
+				throw new AstroError({
+					...AstroErrorData.ClientAddressNotAvailable,
+					message: AstroErrorData.ClientAddressNotAvailable.message(pipeline.adapterName),
+				});
+			}
 		}
+
+		throw new AstroError(AstroErrorData.StaticClientAddressNotAvailable);
 	}
 
 	/**

packages/astro/src/vite-plugin-astro-server/plugin.ts

@@ -135,7 +135,7 @@ export function createDevelopmentManifest(settings: AstroSettings): SSRManifest
 		assets: new Set(),
 		entryModules: {},
 		routes: [],
-		adapterName: '',
+		adapterName: settings?.adapter?.name || '',
 		clientDirectives: settings.clientDirectives,
 		renderers: [],
 		base: settings.config.base,