Opened 3 years ago

Last modified 3 years ago

#19037 new defect

Suppress content access to page visibility API

Reported by: arthuredelstein Owned by: tbb-team
Priority: Medium Milestone:
Component: Applications/Tor Browser Version:
Severity: Normal Keywords: tbb-linkability, TorBrowserTeam201607
Cc: Actual Points:
Parent ID: Points:
Reviewer: Sponsor:

Description (last modified by arthuredelstein)

The document.visibility property and the visibilitychange event let content know if the user has selected or deselected a tab. If the user switches from tab A to tab B, then tab A can receive a "hidden" event at the same time that tab B receives a "visible" event. So it seems potentially useful to suppress this information.

See https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API

Child Tickets

Change History (3)

comment:1 Changed 3 years ago by arthuredelstein

Description: modified (diff)

comment:2 Changed 3 years ago by gk

Keywords: TorBrowserTeam201606 added; TorBrowserTeam201605 removed

comment:3 Changed 3 years ago by gk

Keywords: TorBrowserTeam201607 added; TorBrowserTeam201606 removed
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