Exempt .onion domains from mixed content warnings

Part one of getting .onions exempted for the HTTPS requirement for secure contexts was done in #21321 (moved). Now we want to extend that to mixed content settings as well. See: https://bugzilla.mozilla.org/show_bug.cgi?id=1382359 for the Mozilla bug.

added GeorgKoppen201803 TorBrowserTeam201803R component::applications/tor browser owner::gk priority::medium resolution::fixed severity::normal status::closed tbb-backported type::defect labels

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Status: new to assigned
Owner: N/A to gk

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Component: - Select a component to Applications/Tor Browser

Items for October 2017

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Moving my tickets to November.

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Moving tickets over to November.

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Moving tickets to December 2017

Moving tickets to December 2017, for realz.

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Moving my tickets to December.

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#24819 (moved) is a duplicate.

Moving my tickets to 2018

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Moving tickets to 2018.

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Moving my tickets to Feb.

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Moving tickets to Feb

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bug_23439_v2 (https://gitweb.torproject.org/user/gk/tor-browser.git/log/?h=bug_23439_v2) is up for review. It contains the code (f10bad83876aee09c716086db659ab2bbe9652af) and a test for it (a7d9d4cf255368eef139b1dbde7d16933bfcaa30). We might need to add other tests for the uplift, I'll ask the Mozilla folks about it. For us I think it's enough to have this one test for mixed content blocking exemption.

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Cc: tbb-team to tbb-team, arthuredelstein
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Status: assigned to needs_review

Moving our reviews to March 2018

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Moving my tickets to March.

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As a version of these patches have landed in Mozilla, shall we backport them to include in the next Tor Browser alpha?

Replying to arthuredelstein:

As a version of these patches have landed in Mozilla, shall we backport them to include in the next Tor Browser alpha?

All that is needed is to review the patch in this bug (and adapt it if needed).