Opened 6 weeks ago

Closed 3 weeks ago

#1989 closed defect (worksforme)

Nginx not displaying progressive image when in http2

Reported by: jobs-git@… Owned by:
Priority: critical Milestone:
Component: nginx-core Version: 1.14.x
Keywords: bug, http2, http Cc:
uname -a: Linux localhost.localdomain 4.18.0-147.8.1.el8_1.x86_64 #1 SMP Thu Apr 9 13:49:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.14.1
built by gcc 8.2.1 20180905 (Red Hat 8.2.1-3) (GCC)
built with OpenSSL 1.1.1 FIPS 11 Sep 2018 (running with OpenSSL 1.1.1c FIPS 28 May 2019)
TLS SNI support enabled
configure arguments: --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_stub_status_module --with-http_perl_module=dynamic --with-http_auth_request_module --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E'

Description

When I add ssl http2 in listen tag, nginx does not serve jpg files progressively. http/1.1 on ssl works fine though

This was discovered after few months of researching and trying different version of nginx available from my distro and then eventually nginx 1.14.1

Change History (2)

comment:1 by Maxim Dounin, 5 weeks ago

Regardless of the protocol used, nginx does not "serve jpg files progressively". Instead, it simply serves files. And it is up to browsers to display JPEG files progressively if they can do so.

While it is quite possible that browsers (or some browsers) cannot display JPEG files progressively if files are served via HTTP/2, this is not something nginx can anyhow fix.

On the other hand, I don't see any problems with display of progressive JPEG files served via HTTP/2 neither in Chrome nor in Firefox. If you see any problems, you may want to be more specific on how do you test and how to reproduce what you are seeing - in particular, which browser you are using.

comment:2 by Maxim Dounin, 3 weeks ago

Resolution: worksforme
Status: newclosed

Feedback timeout.

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