child_process, process: possibly confusing error message

[vsemozhetbyt]

• Version: all?
• Platform: all?
• Subsystem: child_process, process

parent.js:

'use strict';

const subprocess = require('child_process').fork('subprocess.js');

try {
  subprocess.send(Symbol());
} catch (err) {
  console.error('PARENT error:', err);
}

subprocess.js:

'use strict';

process.on('uncaughtException', (err) => {
  console.log('SUBPROCESS error:', err);
});

process.on('message', (msg) => {
  console.log('SUBPROCESS got message:', msg);
});

Output:

SUBPROCESS error: SyntaxError: Unexpected token u in JSON at position 0
    at JSON.parse (<anonymous>)
    at Pipe.channel.onread (internal/child_process.js:492:28)

1. Should we intercept unserializable values at the sending side?
2. If not, should we make the error message on receiving side more clear?

[joyeecheung]

Option 1 SGTM.

[vsemozhetbyt]

This seems addressed in daa97df