[19:19:00] <nos>	 If an article has a deprecated link with a #-selector like https://en.wikipedia.org/wiki/Covariance_matrix#As_a_linear_operator and the heading that the # specifies has disappeared, does the article with the deprecated link also disappear from the target article's Links Here page?
[19:20:03] <nos>	 I don't see https://en.wikipedia.org/wiki/Kernel_principal_component_analysis listed on https://en.wikipedia.org/wiki/Special:WhatLinksHere/Covariance_matrix
[19:20:41] <nos>	 ...
[19:21:15] <nos>	 Well nevermind, just figured out to request all the results.
[19:31:37] <nos>	 Updated the article so the link works as intended...
[23:17:00] <temp20191117>	 Hello, I have a question / observation about Wikipedia and HTTP/2
[23:17:41] <temp20191117>	 I went to the following article in Safari 12.1.1 on macOS and the CSS did not load: https://en.wikipedia.org/wiki/Ford_C-Max
[23:18:13] <temp20191117>	 it seems the following CSS did not load: https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.init&only=styles&skin=
[23:18:21] <temp20191117>	 shortened: https://preview.tinyurl.com/yxx4blmr
[23:18:36] <temp20191117>	 Safari gave an error about "NSPOSIXErrorDomain:100"
[23:18:47] <temp20191117>	 this seems to be something to do with HTTP/2
[23:19:08] <temp20191117>	 trying the URL with cURL on the macOS CLI I get:
[23:19:11] <temp20191117>	 $ curl 'https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.init&only=styles&skin=vector'
[23:19:11] <temp20191117>	 curl: (92) HTTP/2 stream 1 was not closed cleanly: PROTOCOL_ERROR (err 1)
[23:19:35] <temp20191117>	 however, forcing HTTP/1.1 works: 
[23:19:37] <temp20191117>	 $ curl --http1.1 'https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.init&only=styles&skin=vector' | file -
[23:19:37] <temp20191117>	   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
[23:19:37] <temp20191117>	                                  Dload  Upload   Total   Spent    Left  Speed
[23:19:37] <temp20191117>	 100 45744  100 45744    0     0   138k      0 --:--:-- --:--:-- --:--:--  139k
[23:19:37] <temp20191117>	 /dev/stdin: ASCII text, with very long lines, with no line terminators
[23:20:19] <temp20191117>	 the lack of CSS is only for some articles, so I'm thinking that only some of the web servers behind your loadbalancers are doing something with HTTP/2
[23:20:46] <temp20191117>	 is there anyone that can look into this?
[23:25:41] <temp20191117>	 The C-Max article now works properly in Safari, but I still get an error from cURL: curl: (92) HTTP/2 stream 1 was not closed cleanly: PROTOCOL_ERROR (err 1)
[23:25:50] <Krenair>	 temp20191117, sounds like it may be worth a phab ticket
[23:26:12] <temp20191117>	 okay
[23:26:21] <Krenair>	 might be an nginx http 2 bug
[23:27:44] <Krenair>	 for the record though I can run that curl command that you posted fine without any http/2 protocol error
[23:28:05] <Krenair>	 what version of curl do you have?
[23:28:18] <temp20191117>	 curl --version
[23:28:18] <temp20191117>	 curl 7.54.0 (x86_64-apple-darwin18.0) libcurl/7.54.0 LibreSSL/2.6.5 zlib/1.2.11 nghttp2/1.24.1
[23:28:18] <temp20191117>	 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp 
[23:28:18] <temp20191117>	 Features: AsynchDNS IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz HTTP2 UnixSockets HTTPS-proxy 
[23:28:25] <temp20191117>	 this is on macOS 10.14.5
[23:28:36] <temp20191117>	 $ which curl
[23:28:36] <temp20191117>	 /usr/bin/curl
[23:28:51] <Krenair>	 alex@alex-laptop:~$ curl --version
[23:28:51] <Krenair>	 curl 7.58.0 (x86_64-pc-linux-gnu) libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
[23:28:51] <Krenair>	 Release-Date: 2018-01-24
[23:29:32] <Krenair>	 different versions of nghttp2
[23:31:05] <temp20191117>	 Interesting: the cURL I have from MacPorts works
[23:31:10] <temp20191117>	 $ /private/opt/local/bin/curl 'https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.init&only=styles&skin=vector' | 
[23:31:10] <temp20191117>	   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
[23:31:10] <temp20191117>	                                  Dload  Upload   Total   Spent    Left  Speed
[23:31:10] <temp20191117>	 100 45744  100 45744    0     0   148k      0 --:--:-- --:--:-- --:--:--  148k
[23:31:10] <temp20191117>	 /dev/stdin: ASCII text, with very long lines, with no line terminators
[23:31:18] <temp20191117>	 $ /private/opt/local/bin/curl --version
[23:31:18] <temp20191117>	 curl 7.64.1 (x86_64-apple-darwin18.2.0) libcurl/7.64.1 OpenSSL/1.0.2s zlib/1.2.11 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.1.1)
[23:31:18] <temp20191117>	 Release-Date: 2019-03-27
[23:31:18] <temp20191117>	 Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp 
[23:31:18] <temp20191117>	 Features: AsynchDNS HTTPS-proxy IDN IPv6 Largefile libz NTLM NTLM_WB PSL SSL TLS-SRP UnixSockets
[23:32:17] <temp20191117>	 perhaps an OS-library interaction of some kind? which both Safari and cURL use?
[23:32:39] <Krenair>	 are you sure that one is using HTTP 2?
[23:33:07] <temp20191117>	 you're right, it may not be
[23:33:14] <Krenair>	 you can pass --http2
[23:33:32] <temp20191117>	 curl: (1) Unsupported protocol
[23:33:37] <Krenair>	 yeah
[23:33:48] <Krenair>	 so not that then
[23:34:05] <Krenair>	 it'll be defaulting to HTTP/1.1 and that's known to be fine
[23:34:40] <temp20191117>	 yeah; found a Stack Overflow question (w/o answers) which sound similar: https://apple.stackexchange.com/questions/374097/
[23:35:36] <temp20191117>	 an upgrade to Safari 13 may fix things, but as a sysadmin I like to know the root-cause 'why' of things breakage. :)
[23:35:45] <Krenair>	 I agree
[23:36:36] <Krenair>	 I'm reading through nghttp2 and curl change logs
[23:37:34] <temp20191117>	 compiling an new MacPorts cURL with +http2; it's pulling in nghttp2 as a depdency
[23:39:47] <temp20191117>	 so with  the following: $/private/opt/local/bin/curl --version
[23:39:48] <temp20191117>	 curl 7.67.0 (x86_64-apple-darwin18.6.0) libcurl/7.67.0 OpenSSL/1.1.1d zlib/1.2.11 libidn2/2.3.0 libpsl/0.21.0 (+libidn2/2.1.1) nghttp2/1.40.0
[23:39:48] <temp20191117>	 Release-Date: 2019-11-06
[23:39:48] <temp20191117>	 Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp 
[23:39:48] <temp20191117>	 Features: AsynchDNS HTTP2 HTTPS-proxy IDN IPv6 Largefile libz NTLM NTLM_WB PSL SSL TLS-SRP UnixSockets
[23:40:01] <temp20191117>	 I get the error: $ /private/opt/local/bin/curl --http2 'https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.init&on
[23:40:01] <temp20191117>	   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
[23:40:01] <temp20191117>	                                  Dload  Upload   Total   Spent    Left  Speed
[23:40:01] <temp20191117>	   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
[23:40:01] <temp20191117>	 curl: (92) HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1)
[23:40:02] <temp20191117>	 /dev/stdin: empty
[23:41:41] <Krenair>	 https://curl.haxx.se/docs/CVE-2018-1000005.html stood out a bit but I don't know enough to know if it's relevant
[23:42:00] <Krenair>	 likely not
[23:43:00] <Krenair>	 oh interesting, curl 7.67 w/ nghttp2/1.40.0 breaks
[23:43:14] <Krenair>	 that's a lot newer than mine
[23:43:32] <temp20191117>	 it's the newest AFAICT, compiled from source via MacPorts
[23:44:54] <Bsadowski1>	 It came out November 6 :P
[23:46:34] <Krenair>	 temp20191117, given the stackoverflow link you posted with two other people also running into this, I'd say let's definitely make a phab ticket
[23:47:11] <temp20191117>	 some more info from curl debugging options:
[23:47:26] <Krenair>	 it's all fun and games if cURL can't hit load.php but an actual web browser implementation failing to load styles is a bad thing
[23:47:41] <temp20191117>	 $ /private/opt/local/bin/curl --http2 -vso /dev/null 'https://en ...
[23:47:42] <temp20191117>	 * TCP_NODELAY set
[23:47:42] <temp20191117>	 * Connected to en.wikipedia.org (2620:0:861:ed1a::1) port 443 (#0)
[23:47:42] <temp20191117>	 * ALPN, offering h2
[23:47:42] <temp20191117>	 * ALPN, offering http/1.1
[23:47:42] <temp20191117>	 * successfully set certificate verify locations:
[23:47:42] <temp20191117>	 [blah blah]
[23:47:44] <temp20191117>	 > Host: en.wikipedia.org
[23:47:45] <temp20191117>	 > user-agent: curl/7.67.0
[23:47:45] <temp20191117>	 > accept: */*
[23:47:46] <temp20191117>	 > 
[23:47:46] <temp20191117>	 { [5 bytes data]
[23:47:47] <temp20191117>	 * Connection state changed (MAX_CONCURRENT_STREAMS == 128)!
[23:47:47] <temp20191117>	 } [5 bytes data]
[23:47:48] <temp20191117>	 * http2 error: Invalid HTTP header field was received: frame type: 1, stream: 1, name: [proxy-connection], value: [keep-alive]
[23:47:48] <temp20191117>	 } [5 bytes data]
[23:48:17] <Krenair>	 there's a bot that lurks here and really does not appreciate big pastes
[23:48:19] <temp20191117>	 $ /private/opt/local/bin/curl --http2 -vso /dev/null 'https://en ...
[23:48:19] <temp20191117>	 * TCP_NODELAY set
[23:48:19] <temp20191117>	 * Connected to en.wikipedia.org (2620:0:861:ed1a::1) port 443 (#0)
[23:48:19] <temp20191117>	 * ALPN, offering h2
[23:48:19] <temp20191117>	 * ALPN, offering http/1.1
[23:48:20] <temp20191117>	 * successfully set certificate verify locations:
[23:48:20] <temp20191117>	 [blah blah]
[23:48:22] <temp20191117>	 > Host: en.wikipedia.org
[23:48:22] <temp20191117>	 > user-agent: curl/7.67.0
[23:48:22] <temp20191117>	 > accept: */*
[23:48:23] <temp20191117>	 > 
[23:48:24] <temp20191117>	 { [5 bytes data]
[23:48:24] <temp20191117>	 * Connection state changed (MAX_CONCURRENT_STREAMS == 128)!
[23:48:24] <Krenair>	 please can you pastebin next time
[23:48:25] <temp20191117>	 } [5 bytes data]
[23:49:07] <temp20191117>	 it's been a few years since I was last on IRC, and have never been on this channel before
[23:49:20] <Krenair>	 no worries
[23:49:25] <temp20191117>	 had to resurrect my Adium setup
[23:50:00] <temp20191117>	 anyway, with "curl -v", the following seems interesting: * http2 error: Invalid HTTP header field was received: frame type: 1, stream: 1, name: [proxy-connection], value: [keep-alive]
[23:50:06] <Krenair>	 yeah I was going to say
[23:50:11] <Krenair>	 what's up with that
[23:50:23] <Krenair>	 can you paste the full command?
[23:50:47] <temp20191117>	 sure, also, I'm connecting via IPv6, which may or may not be related
[23:51:00] <Krenair>	 sure
[23:51:28] <temp20191117>	 command: $ /private/opt/local/bin/curl --http2 -vso /dev/null 'https://en.wikipedia.org/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cjquery.makeCollapsible.styles%7Cmediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.page.gallery.styles%7Cmediawiki.skinning.interface%7Cmediawiki.toc.styles%7Cskins.vector.styles%7Cwikibase.client.
[23:51:52] <Krenair>	 sorry I only got up to part way through the modules list, the rest was truncated
[23:51:56] <Krenair>	 please can you pastebin it?
[23:51:59] <temp20191117>	 k
[23:52:36] <temp20191117>	 https://pastebin.com/ihpY38Hk
[23:53:02] <Krenair>	 oh right, other relevant thing here is this is ATS
[23:53:55] <Krenair>	 so ignore my earlier note earlier about nginx, though this is still probably a client thing
[23:54:11] <temp20191117>	 the above is with cURL 7.67 and nghttp/2 1.40:  https://pastebin.com/icY3Khhq
[23:56:05] <Krenair>	 https://phabricator.wikimedia.org/source/operations-puppet/browse/production/modules/profile/files/trafficserver/tls.lua$32
[23:59:07] <Krenair>	 hmmm
[23:59:09] <Krenair>	 temp20191117, https://github.com/nghttp2/nghttp2/issues/887