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Exit code is null when using headless chrome #16399

Description

@ORESoftware
  • Node v6
  • Darwin

I am getting a null exit code after launching and killing a child process. This probably should never happen? It's happening when I launch chrome in headless mode:

When using the 'chrome-launcher' module, everything works normally:

 const cl = require('chrome-launcher');
  cl.launch({
        startingUrl: `http://localhost:${port}/suman_testing?data=${testData}`,
        chromeFlags: []
      })
      .then(c => {

        // c.launcher.chrome is a child process instance
         c.launcher.chrome.once('exit', function(code){
          // exit code is an integer
        });

      });

but when I use headless mode:

 const cl = require('chrome-launcher');
  cl.launch({
        startingUrl: `http://localhost:${port}/suman_testing?data=${testData}`,
        chromeFlags: ['--headless']  // <<< use headless mode <<<
      })
      .then(c => {
         c.launcher.chrome.once('exit', function(code){
          // exit code is null !! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
        });
      });

is this expected? I am assuming this should never happen.

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