From 89985e352e1dafaa34fba19eb18064e64307f6a4 Mon Sep 17 00:00:00 2001
From: Christian Glassiognon <63924603+heyglassy@users.noreply.github.com>
Date: Tue, 12 Aug 2025 14:38:21 -0700
Subject: [PATCH 1/4] prevent users from using Kernel with Bun

---
 src/client.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/client.ts b/src/client.ts
index 89509db..50997b2 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -187,6 +187,13 @@ export class Kernel {
     apiKey = readEnv('KERNEL_API_KEY'),
     ...opts
   }: ClientOptions = {}) {
+    // Check for Bun runtime in a way that avoids type errors if Bun is not defined
+    if (typeof globalThis !== 'undefined' && typeof (globalThis as any).Bun !== 'undefined' && (globalThis as any).Bun.version) {
+      throw new Errors.KernelError(
+        'The Bun runtime is not supported. Please use a different runtime.',
+      );
+    }
+
     if (apiKey === undefined) {
       throw new Errors.KernelError(
         "The KERNEL_API_KEY environment variable is missing or empty; either provide it, or instantiate the Kernel client with an apiKey option, like new Kernel({ apiKey: 'My API Key' }).",

From 745fc0f7627288ec89f9c5b2e2e66dd6c65e4436 Mon Sep 17 00:00:00 2001
From: Christian Glassiognon <63924603+heyglassy@users.noreply.github.com>
Date: Tue, 12 Aug 2025 14:40:14 -0700
Subject: [PATCH 2/4] prettier

---
 src/client.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client.ts b/src/client.ts
index 50997b2..48dfb3f 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -190,7 +190,7 @@ export class Kernel {
     // Check for Bun runtime in a way that avoids type errors if Bun is not defined
     if (typeof globalThis !== 'undefined' && typeof (globalThis as any).Bun !== 'undefined' && (globalThis as any).Bun.version) {
       throw new Errors.KernelError(
-        'The Bun runtime is not supported. Please use a different runtime.',
+        "The Bun runtime is not supported. Please use a different runtime.",
       );
     }
 

From 80ec147fc5a768af6d64f876392246c2a2fa4e3b Mon Sep 17 00:00:00 2001
From: Christian Glassiognon <63924603+heyglassy@users.noreply.github.com>
Date: Tue, 12 Aug 2025 14:44:08 -0700
Subject: [PATCH 3/4] fix lints

---
 src/client.ts | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/client.ts b/src/client.ts
index 48dfb3f..0147616 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -188,10 +188,12 @@ export class Kernel {
     ...opts
   }: ClientOptions = {}) {
     // Check for Bun runtime in a way that avoids type errors if Bun is not defined
-    if (typeof globalThis !== 'undefined' && typeof (globalThis as any).Bun !== 'undefined' && (globalThis as any).Bun.version) {
-      throw new Errors.KernelError(
-        "The Bun runtime is not supported. Please use a different runtime.",
-      );
+    if (
+      typeof globalThis !== 'undefined' &&
+      typeof (globalThis as any).Bun !== 'undefined' &&
+      (globalThis as any).Bun.version
+    ) {
+      throw new Errors.KernelError('The Bun runtime is not supported. Please use a different runtime.');
     }
 
     if (apiKey === undefined) {

From cfe990eb331b08ac0f702fa18d4e2730a5cd527c Mon Sep 17 00:00:00 2001
From: Christian Glassiognon <63924603+heyglassy@users.noreply.github.com>
Date: Tue, 12 Aug 2025 16:21:54 -0700
Subject: [PATCH 4/4] change copy and functionality

---
 src/client.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/client.ts b/src/client.ts
index 0147616..0da7c4c 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -191,9 +191,12 @@ export class Kernel {
     if (
       typeof globalThis !== 'undefined' &&
       typeof (globalThis as any).Bun !== 'undefined' &&
-      (globalThis as any).Bun.version
+      (globalThis as any).Bun.version &&
+      !readEnv('KERNEL_SUPPRESS_BUN_WARNING')
     ) {
-      throw new Errors.KernelError('The Bun runtime is not supported. Please use a different runtime.');
+      loggerFor(this).warn(
+        'The Bun runtime was detected. Playwright may have CDP connection issues, proceed with caution. Suppress this warning by setting the KERNEL_SUPPRESS_BUN_WARNING environment variable to true',
+      );
     }
 
     if (apiKey === undefined) {