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[91.59.228.175]) by smtp.gmail.com with ESMTPSA id q9sm6053479wrp.61.2020.04.11.02.01.53 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Apr 2020 02:01:53 -0700 (PDT) Date: Sat, 11 Apr 2020 11:01:52 +0200 From: Gary Jennejohn To: freebsd-current@freebsd.org Subject: Re: Firefox and Cliqz tabs crashing at GOV.UK government pages Message-ID: <20200411110152.223bda30@ernst.home> In-Reply-To: <0ebe3d3b-8d4e-949e-fdd0-c62fe7a75df8@shurik.kiev.ua> References: <02848de0-347d-c398-dc4e-a2f5e3f01e7c@gmail.com> <0ebe3d3b-8d4e-949e-fdd0-c62fe7a75df8@shurik.kiev.ua> Reply-To: gljennjohn@gmail.com X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; amd64-portbld-freebsd13.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 48zpm41QfKz4Mjl X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=NCN9Gm6p; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of gljennjohn@gmail.com designates 2a00:1450:4864:20::431 as permitted sender) smtp.mailfrom=gljennjohn@gmail.com X-Spamd-Result: default: False [-3.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[gljennjohn@gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RECEIVED_SPAMHAUS_PBL(0.00)[175.228.59.91.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.10]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; FREEMAIL_REPLYTO(0.00)[gmail.com]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(0.00)[ip: (-9.09), ipnet: 2a00:1450::/32(-2.36), asn: 15169(-0.43), country: US(-0.05)]; RCVD_IN_DNSWL_NONE(0.00)[1.3.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Apr 2020 09:01:57 -0000 On Sat, 11 Apr 2020 09:49:09 +0300 Alexandr Krivulya wrote: > 11.04.20 03:34, Graham Perrin __________: > > On 08/04/2020 20:23, Graham Perrin wrote: > > > > > Firefox 75.0_1,1 tabs crashing or mis-rendering at some www.gov.uk > > pages > > > > > > Most noticeable today at . > > Screenshots available on request. > > > > > > AFAICT the same types of problem with 75.0_1,1 on both r357746 and > > r359628. > > > > The problem persists with r359750, is reproducible with a different > > user account, is reproducible with Cliqz browser. As far as I can > > tell, only bugging UK.GOV government pages. > > > > Occasionally a page will appear OK (e.g. the screen to the left at > > ), more often the page will appear > > wrong (screen to the right, safe mode). > > > > Most often: the tab will crash before the screen can be read. Crashes > > seem to occur at load time, towards the tail end of content loading or > > rendering. > > > > I can't reproduce it on my current (r359770, amd64, firefox-75.0_1,1), > this page loads fine, no any mis-rendering or crashing. > https://www.gov.uk/coronavirus works with r359798 also, of course. I tried it with r359740 using firefox with a java script blocker installed. The site displayed just fine and only complained about cookies. As soon as I enabled any one of the two blocked java scripts the tab crashed. Seems like the site is using some weird java scripts which tickle a bug in older versions (< r359770) of FreeBSD. -- Gary Jennejohn