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Re: [tor-bugs] #30599 [Applications/Tor Browser]: Cloudflare alt-svc onions cause a different exit to be used at each request
#30599: Cloudflare alt-svc onions cause a different exit to be used at each request
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Reporter: cypherpunks2 | Owner: tbb-team
Type: defect | Status: new
Priority: High | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Normal | Resolution:
Keywords: ux-team | Actual Points:
Parent ID: #30024 | Points:
Reviewer: | Sponsor: Sponsor27-must
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Comment (by sysrqb):
From ticket:27502#comment:15
{{{
2020-01-16 00:10:32.776036 UTC - [Parent 2414: Socket Thread]: V/nsHttp
nsHttpConnectionMgr::RestrictConnections 0x7f50a89a4040
.S.P....[tlsflags0x00000000]perfectoid.space:443
(socks:127.0.0.1:9150)[perfectoid.space:2<D4>><B2>G<A4>r<C0>JX^^<BA><9E>N<B2><C2>Q^V<DD><E0>r<8D>_u<90><E1><CA>A'<E4><B9>"]
<ROUTE-via
cflares35lvdlczhy3r6qbza5jjxbcplzvdveabhf7bsp7y4nzmn67yd.onion:443> {NPN-
TOKEN h2}^privateBrowsingId=1&firstPartyDomain=perfectoid.space restricted
due to active >=h2
2020-01-16 00:10:32.776038 UTC - [Parent 2414: Socket Thread]: V/nsHttp
OnMsgSpeculativeConnect Transport not created due to existing connection
count
2020-01-16 00:10:32.776040 UTC - [Parent 2414: Socket Thread]: D/nsHttp
AltSvcTransaction dtor 0x7f50a94bda80 map 0x7f50a892f230 running 1
2020-01-16 00:10:32.776042 UTC - [Parent 2414: Socket Thread]: D/nsHttp
AltSvcTransaction::MaybeValidate() 0x7f50a94bda80 reason=0 running=1
conn=(nil) write=0
2020-01-16 00:10:32.776044 UTC - [Parent 2414: Socket Thread]: D/nsHttp
AltSvcTransaction::MaybeValidate 0x7f50a94bda80 Failed due to precondition
2020-01-16 00:10:32.776046 UTC - [Parent 2414: Socket Thread]: D/nsHttp
AltSvcTransaction dtor 0x7f50a94bda80 map 0x7f50a892f230 validated 0
[https:perfectoid.space:443:P:^privateBrowsingId=1&firstPartyDomain=perfectoid.space]
}}}
The failed validation was due to existing connections at that time.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30599#comment:10>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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