Debugger Step Out / Step Out crashes into internal Promise files in Node 24.14.1 and 25.9.0

[MatthewMonti]

Version

24.1.1 and 25.9.0 both have issue step

Platform

Start debugger: node --inspect-brk app.js
Open Chrome DevTools: chrome://inspect
Step Into (F11) the addNumbers() function ✅ works
Step Out (Shift+F11) from function ✅ prints 15
Step Out again ❌ crashes into node:internal/process/promises:453

Subsystem

No response

What steps will reproduce the bug?

Title:
Debugger protocol regression in Node 24.14.1 - Step Out crashes into internal/process/promises

Description:

Node Version: 24.14.1
OS: [Your OS]

Problem:
Step Out operation in debugger crashes and jumps into Node internal Promise files instead of returning to user code.

Minimal Reproduction:
// app.js
function addNumbers(a, b) {
return a + b
}
let z = addNumbers(5, 10);
console.log(z)

Command: node --inspect-brk app.js

1. Open chrome://inspect
2. Step Into addNumbers() ✅
3. Step Out ✅ (prints 15)
4. Step Out again ❌ CRASHES into node:internal/process/promises:453

Affected Debuggers:

• VSCode debugger
• Chrome DevTools
• Edge DevTools

Workaround:
None found. Works in Node 22 LTS.

Expected:
Step Out should return to next line of user code.

How often does it reproduce? Is there a required condition?

Title:
Debugger protocol regression in Node 24.14.1 - Step Out crashes into internal/process/promises

Description:

Node Version: 24.14.1
OS: [Your OS]

Problem:
Step Out operation in debugger crashes and jumps into Node internal Promise files instead of returning to user code.

Minimal Reproduction:
// app.js
function addNumbers(a, b) {
return a + b
}
let z = addNumbers(5, 10);
console.log(z)

Command: node --inspect-brk app.js

1. Open chrome://inspect
2. Step Into addNumbers() ✅
3. Step Out ✅ (prints 15)
4. Step Out again ❌ CRASHES into node:internal/process/promises:453

Affected Debuggers:

• VSCode debugger
• Chrome DevTools
• Edge DevTools

Workaround:
None found. Works in Node 22 LTS.

Expected:
Step Out should return to next line of user code.

What is the expected behavior? Why is that the expected behavior?

Title:
Debugger protocol regression in Node 24.14.1 - Step Out crashes into internal/process/promises

Description:

Node Version: 24.14.1
OS: [Your OS]

Problem:
Step Out operation in debugger crashes and jumps into Node internal Promise files instead of returning to user code.

Minimal Reproduction:
// app.js
function addNumbers(a, b) {
return a + b
}
let z = addNumbers(5, 10);
console.log(z)

Command: node --inspect-brk app.js

1. Open chrome://inspect
2. Step Into addNumbers() ✅
3. Step Out ✅ (prints 15)
4. Step Out again ❌ CRASHES into node:internal/process/promises:453

Affected Debuggers:

• VSCode debugger
• Chrome DevTools
• Edge DevTools

Workaround:
None found. Works in Node 22 LTS.

Expected:
Step Out should return to next line of user code.

What do you see instead?

Title:
Debugger protocol regression in Node 24.14.1 - Step Out crashes into internal/process/promises

Description:

Node Version: 24.14.1
OS: [Your OS]

Problem:
Step Out operation in debugger crashes and jumps into Node internal Promise files instead of returning to user code.

Minimal Reproduction:
// app.js
function addNumbers(a, b) {
return a + b
}
let z = addNumbers(5, 10);
console.log(z)

Command: node --inspect-brk app.js

1. Open chrome://inspect
2. Step Into addNumbers() ✅
3. Step Out ✅ (prints 15)
4. Step Out again ❌ CRASHES into node:internal/process/promises:453

Affected Debuggers:

• VSCode debugger
• Chrome DevTools
• Edge DevTools

Workaround:
None found. Works in Node 22 LTS.

Expected:
Step Out should return to next line of user code.

Additional information

No response