fix: resolve escaped </script> in generated framework files

src/lib/string.ts

@@ -1,6 +1,19 @@
 import baseDedent from "dedent";
 
-export const dedent = baseDedent.withOptions({ alignValues: true });
+const baseDedentWithOptions = baseDedent.withOptions({ alignValues: true });
+
+export function dedent(strings: TemplateStringsArray | string, ...values: unknown[]): string {
+	if (typeof strings === "string") {
+		return baseDedentWithOptions(strings);
+	}
+
+	// dedent reads `strings.raw` by default, which keeps escapes the bundler adds
+	// to string literals (e.g. `</script>` becomes `<\/script>`). Point `raw` at
+	// the regular string segments instead, where escapes are already resolved, so
+	// they don't leak into generated files.
+	const resolved = Array.from(strings);
+	return baseDedentWithOptions(Object.assign(resolved, { raw: resolved }), ...values);
+}
 
 export function formatTable(
 	rows: string[][],

test/gen-setup.test.ts

@@ -1,4 +1,4 @@
-import { writeFile } from "node:fs/promises";
+import { mkdir, writeFile } from "node:fs/promises";
 
 import { it } from "./it";
 
@@ -35,6 +35,32 @@ it("skips existing files", { timeout: 30_000 }, async ({ expect, project, prismi
 	await expect(project).toHaveFile("prismicio.js", { contains: "// custom client file" });
 });
 
+it("generates valid script tags for SvelteKit", { timeout: 30_000 }, async ({
+	expect,
+	project,
+	prismic,
+}) => {
+	// Reconfigure the fixture as a SvelteKit project so a file with a <script>
+	// block is generated (the simulator page).
+	await writeFile(
+		new URL("package.json", project),
+		JSON.stringify({ dependencies: { "@sveltejs/kit": "latest", svelte: "latest" } }),
+	);
+	await mkdir(new URL("node_modules/svelte/", project), { recursive: true });
+	await writeFile(
+		new URL("node_modules/svelte/package.json", project),
+		JSON.stringify({ version: "5.0.0" }),
+	);
+
+	const { exitCode } = await prismic("gen", ["setup", "--no-install"]);
+	expect(exitCode).toBe(0);
+
+	// The closing tag must be "</script>", not the bundler-escaped "<\/script>".
+	await expect(project).toHaveFile("src/routes/slice-simulator/+page.svelte", {
+		contains: "</script>",
+	});
+});
+
 it("skips installation with --no-install", async ({ expect, project, prismic }) => {
 	const { exitCode, stdout } = await prismic("gen", ["setup", "--no-install"]);
 	expect(exitCode).toBe(0);