UserAgent: Mozilla/5.0 (X11; CrOS x86_64 9202.18.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.32 Safari/537.36
Platform: 9202.18.0 (Official Build) beta-channel edgar

Steps to reproduce the problem:
1. Be automatically connecting to captive portal wifi.
2. Attempt to log in.

What is the expected behavior?

What went wrong?
Repeated crash and system restart.

Crashed report ID: 5ad0ead740000000

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? N/A 

Chrome version: 57.0.2987.32  Channel: beta
OS Version: 9202.18.0
Flash Version: Shockwave Flash 24.0 r0