docker crashes when preferences is selected while preference window is in edit mode of insecure registries

[schatt]

Expected behavior

Should bring the preference window to the foreground.

Actual behavior

Dialog pops up with "Fatal Error Segmentation violation exception"

Information

• Full output of the diagnostics from "Diagnose & Feedback" in the menu
  Docker for Mac: version: 17.03.0-ce-mac2 (1d7d97bbb)
  macOS: version 10.12.4 (build: 16E195)
  logs: /tmp/D5617CDF-F769-44CA-951E-490C8AF2CAF4/20170327-212546.tar.gz
  [OK] vmnetd
  [OK] dns
  [OK] driver.amd64-linux
  [OK] virtualization VT-X
  [OK] app
  [OK] moby
  [OK] system
  [OK] moby-syslog
  [OK] db
  [OK] env
  [OK] virtualization kern.hv_support
  [OK] slirp
  [OK] osxfs
  [OK] moby-console
  [OK] logs
  [OK] docker-cli
  [OK] menubar
  [OK] disk
• A reproducible case if this is a bug, Dockerfiles FTW
  To reproduce, on Mac OS X 10.12.4 (not sure if OS version specific):
  • go to the docker icon, select preferences.
  • go to the daemon tab
  • click the plus under add an insecure registry
  • don't type anything, but don't exit the window or edit box
  • Go to the docker icon in the menu bar, and select preferences again.
  • observe crash dialog.

Steps to reproduce the behavior

To reproduce, on Mac OS X 10.12.4 (not sure if OS version specific):
• go to the docker icon, select preferences.
• go to the daemon tab
• click the plus under add an insecure registry
• don't type anything, but don't exit the window or edit box
• Go to the docker icon in the menu bar, and select preferences again.
• observe crash dialog.

[avsm]

Thank you for reporting this bug, and for the detailed reproduction instructions. I have confirmed this on build Version 17.03.1-ce-rc1-mac3 (15924) and filed an internal GUI issue. We will update this ticket as soon as a fix is shipped on the Edge channel.

[docker-robott]

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