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Security/Tracking protection

28 bytes added, 18:17, 21 May 2018
m
Code walkthrough: fix list formatting and add an extra heading for tracking annotations
is kicked off in [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/protocol/http/nsHttpChannel.cpp#6385 <tt>nsHttpChannel::BeginConnectContinue()</tt>] and goes like this:
1. # we asynchronously [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#1225 check the blacklist]2. # if there's a match, we then [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#974 check the entity whitelist]3. # if it doesn't match the whitelist, we [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#1011 treat it as a tracker]4. # we either [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#1023 cancel the channel] (for full tracking protection) or [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#1027 set a tracking flag] (for tracking annotations only)
Note that only [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#319 eligible resources] are run through the classifier:
- * must not be a [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#355-375 first-party or top-level load]- * addons can request [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#384-386 permission to load tracking resources]- * we check the permission manager for any [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#406-431 manual user overrides] (and an [https://searchfox.org/mozilla-central/rev/8affe6e83188787eb61fe0528eeb6eef6081ba06/netwerk/base/nsChannelClassifier.cpp#433-450 in-memory list in Private Browsing]) ==== Tracking annotations ====
Tracking annotations are used in four different places:
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