[tor-bugs] #29634 [Applications/Tor Browser]: Riot.im local storage lost when closing tab

[Tor Bug Tracker & Wiki]

#29634: Riot.im local storage lost when closing tab
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 Reporter:  0tzVNmkQxgql                 |          Owner:  tbb-team
     Type:  defect                       |         Status:
                                         |  needs_information
 Priority:  Medium                       |      Milestone:
Component:  Applications/Tor Browser     |        Version:
 Severity:  Normal                       |     Resolution:
 Keywords:  riot, matrix, local storage  |  Actual Points:
Parent ID:                               |         Points:
 Reviewer:                               |        Sponsor:
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Comment (by 0tzVNmkQxgql):

 This is what I did:

 Options -> Privacy and Security -> History: Uncheck "Always use private
 browsing mode" (so this is the problem?), restart
 Options -> Privacy and Security -> History: Check "Clear history when Tor
 Browser closes", then uncheck "Cookies" and "Active Logins" under Settings
 ("Offline Website Data" and "Site Preferences" are already unchecked)
 Options -> Cookies and Site Data: Check "Keep until I close Tor Browser",
 click on "Exceptions" and add "riot.im" with status "Allow".

 This retains cookies and IndexedDB even over restarts. I also set "Store
 Data in Persistent Storage" to "Allow" in the Permissions tab that you can
 reach when clicking the green lock.

 This actually worked for a while last year and stopped working in January.
 I tried to downgrade TB and Riot to find the last versions on which it
 worked, but I was unsuccessful.

 I am currently running a Whonix VM just for Riot, which is rather
 inconvenient and has its problems. I could set up the Electron desktop
 client to use Tor as a Proxy and to not self-update, but I don't trust
 Electron apps not to make connections anyway and firewalling it off is
 cumbersome, because the executable path changes with every update.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29634#comment:2>
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