Protocol error (Target.createTarget): Target closed

[jiripospisil]

Hello, I'm getting the following error while trying to take a screenshot on Lambda:

  const page = await incognitoContext.newPage();
  // ...
  return page.screenshot();

2018-12-17T10:07:15.426Z 856540b8-01e3-11e9-b71f-a1bd004ededf Error: Protocol error (Target.createTarget): Target closed.
at Promise (/opt/nodejs/node_modules/puppeteer-core/lib/Connection.js:73:56)
at new Promise (<anonymous>)
at Connection.send (/opt/nodejs/node_modules/puppeteer-core/lib/Connection.js:72:12)
at Browser._createPageInContext (/opt/nodejs/node_modules/puppeteer-core/lib/Browser.js:174:47)
at BrowserContext.newPage (/opt/nodejs/node_modules/puppeteer-core/lib/Browser.js:368:26)
at takeScreenshot (/var/task/index.js:35:41)
at exports.handler (/var/task/index.js:100:28)
at <anonymous>
at process._tickDomainCallback (internal/process/next_tick.js:228:7)

If I try to run the binary locally (Ubuntu 18.04.1 LTS) and open https://example.com, it indeed closes almost immediately:

time ./chromium-72.0.3617.0 --disable-accelerated-2d-canvas --disable-background-timer-throttling --disable-breakpad --disable-client-side-phishing-detection --disable-cloud-import --disable-default-apps --disable-dev-shm-usage --disable-extensions --disable-gesture-typing --disable-gpu --disable-hang-monitor --disable-infobars --disable-notifications --disable-offer-store-unmasked-wallet-cards --disable-offer-upload-credit-cards --disable-popup-blocking --disable-print-preview --disable-prompt-on-repost --disable-setuid-sandbox --disable-software-rasterizer --disable-speech-api --disable-sync --disable-tab-for-desktop-share --disable-translate --disable-voice-input --disable-wake-on-wifi --enable-async-dns --enable-simple-cache-backend --enable-tcp-fast-open --hide-scrollbars --media-cache-size=33554432 --metrics-recording-only --mute-audio --no-default-browser-check --no-first-run --no-pings --no-sandbox --no-zygote --password-store=basic --prerender-from-omnibox=disabled --use-mock-keychain --single-process https://example.com
[1217/114728.139380:WARNING:resource_bundle.cc(346)] locale_file_path.empty() for locale 
./chromium-72.0.3617.0 --disable-accelerated-2d-canvas  --disable-breakpad     0,12s user 0,03s system 26% cpu 0,560 total

If I try to open https://twitter.com instead, the process segfaults:

Thread 3 "Chrome_IOThread" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff4b0f700 (LWP 22900)]
0x000055555993e872 in ?? ()
(gdb) bt
#0  0x000055555993e872 in ?? ()
#1  0x0000555558cd9630 in ?? ()
#2  0x00005555589c5bad in ?? ()
#3  0x0000555558bd325c in ?? ()
#4  0x0000555558bd3033 in ?? ()
#5  0x0000555558bd76ad in ?? ()
#6  0x0000555558be137f in ?? ()
#7  0x000055555ab12897 in ?? ()
#8  0x0000555558359547 in ?? ()
#9  0x00005555583593e6 in ?? ()
#10 0x000055555a269684 in ?? ()
#11 0x000055555a268e88 in ?? ()
#12 0x000055555a2637c3 in ?? ()
#13 0x000055555a263f91 in ?? ()
#14 0x000055555a27633a in ?? ()
#15 0x0000555559913d78 in ?? ()
#16 0x000055555991337f in ?? ()
#17 0x00005555599138a2 in ?? ()
#18 0x00005555599a02f9 in ?? ()
#19 0x000055555992da45 in ?? ()
#20 0x00005555589e8354 in ?? ()
#21 0x00005555599668df in ?? ()
#22 0x000055555999b18e in ?? ()
#23 0x00007ffff79b96db in start_thread (arg=0x7ffff4b0f700) at pthread_create.c:463
#24 0x00007ffff633b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

If I remove --single-process, it doesn't segfault anymore but again closes with a slight delay:

time ./chromium-72.0.3617.0 --disable-accelerated-2d-canvas --disable-background-timer-throttling --disable-breakpad --disable-client-side-phishing-detection --disable-cloud-import --disable-default-apps --disable-dev-shm-usage --disable-extensions --disable-gesture-typing --disable-gpu --disable-hang-monitor --disable-infobars --disable-notifications --disable-offer-store-unmasked-wallet-cards --disable-offer-upload-credit-cards --disable-popup-blocking --disable-print-preview --disable-prompt-on-repost --disable-setuid-sandbox --disable-software-rasterizer --disable-speech-api --disable-sync --disable-tab-for-desktop-share --disable-translate --disable-voice-input --disable-wake-on-wifi --enable-async-dns --enable-simple-cache-backend --enable-tcp-fast-open --hide-scrollbars --media-cache-size=33554432 --metrics-recording-only --mute-audio --no-default-browser-check --no-first-run --no-pings --no-sandbox --no-zygote --password-store=basic --prerender-from-omnibox=disabled --use-mock-keychain https://twitter.com
[1217/115133.515117:WARNING:resource_bundle.cc(346)] locale_file_path.empty() for locale 
[1217/115133.540260:WARNING:resource_bundle.cc(346)] locale_file_path.empty() for locale 
./chromium-72.0.3617.0 --disable-accelerated-2d-canvas  --disable-breakpad     0,18s user 0,10s system 17% cpu 1,551 total

I've tried the previous release as well (chromium-71.0.3563.0) with the same results. I would expect the browser to stay open. I tried the release that comes with Puppeteer and it does stay open with the same flags. Any ideas?

The report looks similar to #3 but the error message is different so I thought I would open another one.

[jiripospisil]

It looks like the main issue is that incognito is not compatible with single-process. There's an issue about it at puppeteer/puppeteer#2608 which I somehow missed. Closing for now.