fixes whitescreen crash with datadog

Created by: jasongornall

Test plan

1. click repro link and observe no white-screen. The other crash will be fixed in a separate PR

Repro link: https://sourcegraph.com/search?q=context:global+repo:^github.com/sourcegraph/sourcegraph%24+file:^yarn.lock+.*\n+index:no&patternType=regexp

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.