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-rw-r--r--actionpack/CHANGELOG.md8
-rw-r--r--actionpack/lib/action_dispatch/http/mime_type.rb2
-rw-r--r--actionpack/test/controller/render_test.rb6
3 files changed, 15 insertions, 1 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index e33accf854..05495179c3 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,11 @@
+* Fix `Mime::Type.parse` when bad accepts header is looked up. Previously it
+ was setting `request.formats` with an array containing a `nil` value, which
+ raised an error when setting the controller formats.
+
+ Fixes #10965
+
+ *Becker*
+
* Merge `:action` from routing scope and assign endpoint if both `:controller`
and `:action` are present. The endpoint assignment only occurs if there is
no `:to` present in the options hash so should only affect routes using the
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index 61dbf2b96c..ef144c3c76 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -175,7 +175,7 @@ module Mime
def parse(accept_header)
if accept_header !~ /,/
accept_header = accept_header.split(PARAMETER_SEPARATOR_REGEXP).first
- parse_trailing_star(accept_header) || [Mime::Type.lookup(accept_header)]
+ parse_trailing_star(accept_header) || [Mime::Type.lookup(accept_header)].compact
else
list, index = AcceptList.new, 0
accept_header.split(',').each do |header|
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index 72411ec900..fd835795c0 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -1089,6 +1089,12 @@ class RenderTest < ActionController::TestCase
assert_equal '<test>passed formatted html erb</test>', @response.body
end
+ def test_should_render_formatted_html_erb_template_with_bad_accepts_header
+ @request.env["HTTP_ACCEPT"] = "; a=dsf"
+ get :formatted_xml_erb
+ assert_equal '<test>passed formatted html erb</test>', @response.body
+ end
+
def test_should_render_formatted_html_erb_template_with_faulty_accepts_header
@request.accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, appliction/x-shockwave-flash, */*"
get :formatted_xml_erb