fix(astro/core): Do not add base to hoisted script body (#5720)

* fix(astro/core): Do not add base to hoisted script body

* fix(astro/core): Add base path to hoisted .js files only

* fix(astro/core): undo style changes

Author: umarov

.changeset/good-carpets-confess.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Do not add base path to a hoisted script body

packages/astro/src/core/build/vite-plugin-ssr.ts

@@ -44,9 +44,7 @@ const _manifest = Object.assign(_deserializeManifest('${manifestReplace}'), {
 	renderers: _main.renderers
 });
 const _args = ${adapter.args ? JSON.stringify(adapter.args) : 'undefined'};
-
 export * from '${pagesVirtualModuleId}';
-
 ${
 	adapter.exports
 		? `const _exports = adapter.createExports(_manifest, _args);
@@ -165,9 +163,11 @@ function buildManifest(
 	for (const pageData of eachServerPageData(internals)) {
 		const scripts: SerializedRouteInfo['scripts'] = [];
 		if (pageData.hoistedScript) {
+			const hoistedValue = pageData.hoistedScript.value
+			const value = hoistedValue.endsWith('.js') ? joinBase(hoistedValue) : hoistedValue
 			scripts.unshift(
 				Object.assign({}, pageData.hoistedScript, {
-					value: joinBase(pageData.hoistedScript.value),
+					value,
 				})
 			);
 		}

packages/astro/test/ssr-hoisted-script.test.js

@@ -29,4 +29,24 @@ describe('Hoisted scripts in SSR', () => {
 		const $ = cheerioLoad(html);
 		expect($('script').length).to.equal(1);
 	});
+
+	describe('base path', () => {
+		const base = '/hello';
+
+		before(async () => {
+			fixture = await loadFixture({
+				root: './fixtures/ssr-hoisted-script/',
+				output: 'server',
+				adapter: testAdapter(),
+				base,
+			});
+			await fixture.build();
+		});
+
+		it('Inlined scripts get included without base path in the script', async () => {
+			const html = await fetchHTML('/hello/');
+			const $ = cheerioLoad(html);
+			expect($('script').html()).to.equal('console.log("hello world");\n');
+		});
+	});
 });