Bug: the game frozen during scoring

http://online-go.com/game/717194 is frozen

Here’s the error from the Javascript console:

Welcome to OGS
Starting download at 73 ms
Loading  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/ogs-default.4.0-674-gf86357d.css
Loading  /locale.js
Loading  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/locale/countries_en.js
Loading  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/ogs.4.0-674-gf86357d.min.js
Loaded  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/ogs-default.4.0-674-gf86357d.css 130 ms
Loaded  /locale.js 452 ms
Loaded  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/locale/countries_en.js 455 ms
This appears to be Chrome
Loaded  https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/ogs.4.0-674-gf86357d.min.js 557 ms
Loading and initialization:  656 ms
Device: desktop
Object
resetting groups
Uncaught TypeError: Cannot read property '0' of undefined a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.0/ogs.4.0-674-gf86357d.min.js:1408
Detaching shadow canvas