fix: leaky page close

src/page.ts

@@ -384,11 +384,10 @@ export class Page extends EventTarget {
       if (index > -1) {
         this.#browser.pages.splice(index, 1);
       }
+      await this.#celestial.close();
       return;
     }
 
-    await this.#celestial.close();
-
     throw new Error(`Page has already been closed or doesn't exist (${res})`);
   }
 

tests/leak_test.ts

@@ -0,0 +1,11 @@
+import { launch } from "../mod.ts";
+
+const browser = await launch();
+
+addEventListener("unload", async () => {
+  await browser.close();
+});
+
+Deno.test("Opening and closing a page without closing the browser isn't leak", async () => {
+  await using _ = await browser.newPage();
+});