[Bug]: webContents.print() crashes with a non-null callback

[mgalla10]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

17.0.0

What operating system are you using?

Windows

Operating System Version

Windows 10 version 20H2

What arch are you using?

x64

Last Known Working Electron version

17.0.0-beta.2

Expected Behavior

Calling webContents.print({}, () => {}) will not crash, and will show the system print dialog.

Actual Behavior

The electron app crashes, even when the aforementioned print() call is encapsulated within a try-catch block.

Testcase Gist URL

https://gist.github.com/1ab968669f64a7707306e876ab2ff5bc

Additional Information

Looks pretty similar to #32276, though I'm not able to reproduce the crash in 16.0.5 as the author of that issue claims.

Calling the print() API and providing undefined or null as the callback parameter still shows the dialog, although canceling that print dialog will still result in a crash (as documented in #32684). It's also worth noting that when running in Electron Fiddle, both the print dialog cancellation crash and this new crash share the same error code (3221225477), so I'm wondering if they're related, and if the PR fixing the dialog cancellation crash (#32632) might fix this as well.

[pushkin-]

I actually just came across this error code without any printing workflow (Electron 16):

Exit status 3221225477
at EventEmitter.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:332:16)
at EventEmitter.emit (events.js:315:20)
at ChildProcess.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
at ChildProcess.emit (events.js:315:20)
at maybeClose (internal/child_process.js:1048:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)

[acutus]

I ran into this as well. Tested with Electron 17.0.0 both on Ubuntu 20.04.3 x64 and Mac OS Big Sur (11.5.2).

Same behavior, with a callback defined print crashes directly when trying to print. With a null callback print succeeds (using silent: true).

[codebytere]

Crashing fixed in #32632