From a4144d5e9b2c81ce9289833efd08b1c3b947a647 Mon Sep 17 00:00:00 2001
From: Pavel Feldman <pavel.feldman@gmail.com>
Date: Thu, 10 Sep 2026 09:02:31 -0700
Subject: [PATCH] chore(build): set esbuild target to node20

esbuild had no explicit target and defaulted to esnext, so `using`
declarations reached lib/ verbatim and failed to parse on the minimum
supported node. Adds Symbol.dispose to JSHandle and uses it for the frame
element handle in crPage.
---
 packages/playwright-core/src/server/chromium/crPage.ts | 2 +-
 packages/playwright-core/src/server/javascript.ts      | 4 ++++
 utils/build/build.js                                   | 1 +
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/playwright-core/src/server/chromium/crPage.ts b/packages/playwright-core/src/server/chromium/crPage.ts
index 1e97cacbcc8ac..30c993fb37d19 100644
--- a/packages/playwright-core/src/server/chromium/crPage.ts
+++ b/packages/playwright-core/src/server/chromium/crPage.ts
@@ -1145,7 +1145,7 @@ class FrameSession {
       return null;
     if (frame === this._page.mainFrame())
       return { x: 0, y: 0 };
-    const element = await frame.frameElement(nullProgress);
+    using element = await frame.frameElement(nullProgress);
     const box = await element.boundingBox(nullProgress);
     return box;
   }
diff --git a/packages/playwright-core/src/server/javascript.ts b/packages/playwright-core/src/server/javascript.ts
index 0f549a0273542..adaae310f1bf2 100644
--- a/packages/playwright-core/src/server/javascript.ts
+++ b/packages/playwright-core/src/server/javascript.ts
@@ -223,6 +223,10 @@ export class JSHandle<T = any> extends SdkObject {
     }
   }
 
+  [Symbol.dispose]() {
+    this.dispose();
+  }
+
   override toString(): string {
     return this._preview;
   }
diff --git a/utils/build/build.js b/utils/build/build.js
index 75c247284e174..68de8fbcf6fae 100644
--- a/utils/build/build.js
+++ b/utils/build/build.js
@@ -331,6 +331,7 @@ class EsbuildStep extends Step {
       sourcemap: withSourceMaps ? 'linked' : false,
       platform: 'node',
       format: 'cjs',
+      target: 'node20',
       ...options,
     };
     this._watchPaths = watchPaths;