Unscrubbed URL in WhisperBack reports

Originally created by @goupille on #10695 (Redmine)

In at least one WhisperBack report there was part of the user’s browsing history. the URL appears in the Journal, and are always followed by that warning :

WARNING: content window passed to PrivateBrowsingUtils.isWindowPrivate. Use isContentWindowPrivate instead (but only for frame scripts).
pbu_isWindowPrivate@re[//gre/modules/PrivateBrowsingUtils.jsm:25:14](//gre/modules/PrivateBrowsingUtils.jsm:25:14)
nsBrowserAccess.prototype.openURI@chrome://browser/content/browser.js:15189:21
noscriptOverlay<.browserAccess.openURI@chrome://noscript/content/noscriptOverlay.js:2822:13

Feature Branch: whisperback:bugfix/10695-clean-urls

Edited Oct 06, 2020 by intrigeri

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