node debugging via inspector api

main.js

  var http = require('http')

  // Expectation: When I curl localhost:3000, I want to be able to 
  var server = http.createServer(function (req, res) 
      res.statusCode = 200;
      res.write(e.stack); // throws exception
      res.end()
  })


  // Goal: I'm trying to log the fn params when the exception is thrown.
  // Problem: 
  // 1) I can't use session.connect AND inspector.open()
  // 2) Even using session.post I'm unable to pause the Debugger on the uncaught exception
  server.listen(3000, function () {
      console.log('listening on port 3000')

      const inspector = require('inspector');
      // inspector.open(); // can't use this and session.connect() or Sigabort happens
    
      var session = new inspector.Session()
      session.connect();

      // this logs as empty array when process crashes
      session.on('Debugger.paused', ({ params }) => {
          console.log('hitBreakpoints', params.hitBreakpoints);
      });

      // this seems to work fine
      session.post('Runtime.evaluate', { expression: '2 + 2' },
          (error, { result }) => console.log('result', result));

      // doesn't appear to do anything
      session.post('Debugger.enable', {},
          (error, { result }) => {
              console.log('debugger', result);
          });

      // doesn't appear to do anything
      session.post('Debugger.setPauseOnExceptions', {state: 'all'},
          (error, { result }) => console.log('debugger', result));
    
  });