firefox-devtools / firefox-devtools/profiler

Profiler capturing occasionally leads to a blank page

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Description

![](https://user-images.githubusercontent.com/8599/70670400-b8ef0680-1c2d-11ea-9223-e65ada0c71bd.png)

No relevant Console logs. Maybe related to the Service Worker and the new architecture that is behind `dom.serviceWorkers.parent_intercept` (cc @asutherland).

Refresh also doesn't work in this case, but it works the next time capture is clicked. The first profile is gone.

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-224)

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