From ca9ddff7ca67e0b345447da5de1c9cc21dcab255 Mon Sep 17 00:00:00 2001
From: Yury Semikhatsky <yurys@chromium.org>
Date: Wed, 31 Jul 2024 11:07:45 -0700
Subject: [PATCH] =?UTF-8?q?cherry-pick(#31934):=20chore:=20make=20sure=20e?=
 =?UTF-8?q?rror=20stack=20includes=20message=20as=E2=80=A6=20(#31935)?=
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… before #31691

This brings stack formatting to how it was prior to
https://github.com/microsoft/playwright/commit/1686e5174db39599a0adac7c2001d93a21f2a0aa
so that the ports can use it.
---
 .../server/isomorphic/utilityScriptSerializers.ts    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/packages/playwright-core/src/server/isomorphic/utilityScriptSerializers.ts b/packages/playwright-core/src/server/isomorphic/utilityScriptSerializers.ts
index 0f3895fac5..6df7988caf 100644
--- a/packages/playwright-core/src/server/isomorphic/utilityScriptSerializers.ts
+++ b/packages/playwright-core/src/server/isomorphic/utilityScriptSerializers.ts
@@ -170,8 +170,16 @@ export function source() {
     if (typeof value === 'bigint')
       return { bi: value.toString() };
 
-    if (isError(value))
-      return { e: { n: value.name, m: value.message, s: value.stack || '' } };
+    if (isError(value)) {
+      let stack;
+      if (value.stack?.startsWith(value.name + ': ' + value.message)) {
+        // v8
+        stack = value.stack;
+      } else {
+        stack = `${value.name}: ${value.message}\n${value.stack}`;
+      }
+      return { e: { n: value.name, m: value.message, s: stack } };
+    }
     if (isDate(value))
       return { d: value.toJSON() };
     if (isURL(value))