[tor-bugs] #30302 [Applications/Tor Browser]: Cleanup maps in tor-circuit-display

[Tor Bug Tracker & Wiki]

#30302: Cleanup maps in tor-circuit-display
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 Reporter:  acat           |          Owner:  tbb-team
     Type:  enhancement    |         Status:  new
 Priority:  Medium         |      Component:  Applications/Tor Browser
  Version:                 |       Severity:  Normal
 Keywords:  tbb-torbutton  |  Actual Points:
Parent ID:                 |         Points:
 Reviewer:                 |        Sponsor:
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 Currently `browserToCredentialsMap`, `knownCircuitIDs`
 `credentialsToNodeDataMap` maps always grow in the lifetime of browser
 window. We should clean this up for example when a tab is closed or in
 general when we are sure the info will never be used again.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30302>
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