Chrome Version: 66.0.3347.0 (3347.0)

What steps will reproduce the problem?
(1) Install the latest version of Puppeteer (1.1.1 as of right now; downloads Chromium r536395) (https://github.com/GoogleChrome/puppeteer)
(2) Run the following script:

const puppeteer = require('puppeteer');

async function main() {
  const browser = await puppeteer.launch({
    headless: false
  });

  // <snip>
}

main().then(console.log).catch(console.log);


(3) Once a new Chromium window is opened, close it and wait for a few seconds. The Chromium process crashes with the following:

Process:               Chromium [71604]
Path:                  /private/tmp/*/Chromium.app/Contents/MacOS/Chromium
Identifier:            org.chromium.Chromium
Version:               66.0.3347.0 (3347.0)
Code Type:             X86-64 (Native)
Parent Process:        node [71603]
Responsible:           iTerm2 [662]
User ID:               501

Date/Time:             2018-03-10 18:23:26.365 +0100
OS Version:            Mac OS X 10.13.3 (17D102)
Report Version:        12
Bridge OS Version:     3.0 (14Y661)

Time Awake Since Boot: 670000 seconds
Time Since Wake:       6700 seconds

System Integrity Protection: enabled

Crashed Thread:        30  Chrome_DevToolsHandlerThread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000028

VM Regions Near 0x28:
--> 
    __TEXT                 000000010ec50000-000000010ec51000 [    4K] r-x/rwx SM=COW  /tmp/*/Chromium.app/Contents/MacOS/Chromium

Thread 30 Crashed:: Chrome_DevToolsHandlerThread
0   org.chromium.Chromium.framework	0x0000000112a4e184 0x10ec7a000 + 64831876
1   org.chromium.Chromium.framework	0x0000000110a8be0c 0x10ec7a000 + 31530508
2   org.chromium.Chromium.framework	0x0000000110ab1cc4 0x10ec7a000 + 31685828
3   org.chromium.Chromium.framework	0x0000000110ab21b8 0x10ec7a000 + 31687096
4   org.chromium.Chromium.framework	0x0000000110ab33d5 0x10ec7a000 + 31691733
5   org.chromium.Chromium.framework	0x0000000110ad8b15 0x10ec7a000 + 31845141
6   org.chromium.Chromium.framework	0x0000000110b0aaac 0x10ec7a000 + 32049836
7   org.chromium.Chromium.framework	0x0000000110b05d87 0x10ec7a000 + 32030087
8   libsystem_pthread.dylib       	0x00007fff767286c1 _pthread_body + 340
9   libsystem_pthread.dylib       	0x00007fff7672856d _pthread_start + 377
10  libsystem_pthread.dylib       	0x00007fff76727c5d thread_start + 13


What is the expected result?

I'm not sure what's the contract between the remotely controlled instance and the one who controls it but it certainly should not crash.