id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1062	ASCII-8BIT encoding when it should be UTF-8?	cenotaph@…		"Hello, big nginx fan here. But dismayed to find that it appears to be the culprit in crashing a Rails site, upon encountering extended characters in the database (ä, å, etc.).

Rails crashes out with ActionView::Template::Error (incompatible character encodings: UTF-8 and ASCII-8BIT) under nginx as a reverse proxy. This ONLY happens in production mode under nginx. I have tried with both Passenger and Puma behind the reverse proxy but it still happens. If I run Puma on it's own port and bypass nginx it works fine. And then I installed Apache and it works fine with Puma reverse-proxying to Apache.

All the setting of my database, app, etc. specifiy utf-8. The data in the database is utf-8. charset: utf-8 is in the nginx configs. The http headers claim utf-8. But somehow nginx (I guess?) is trying it as ASCII-8BIT.
"	defect	closed	major		nginx-core	1.10.x	worksforme			Linux li194-191 4.6.5-x86_64-linode71 #2 SMP Fri Jul 29 16:16:25 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.10.1
built by gcc 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2) 
built with OpenSSL 1.0.2g-fips  1 Mar 2016
TLS SNI support enabled
configure arguments: --prefix=/opt/nginx --with-http_ssl_module --with-http_gzip_static_module --with-http_stub_status_module --with-cc-opt=-Wno-error --with-ld-opt= --add-module=/usr/local/rvm/gems/ruby-2.3.1/gems/passenger-5.0.30/src/nginx_module"