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-rw-r--r--app/models/design_management/design.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/app/models/design_management/design.rb b/app/models/design_management/design.rb
index 79f5a63bcb6..feb1bf5438c 100644
--- a/app/models/design_management/design.rb
+++ b/app/models/design_management/design.rb
@@ -169,7 +169,7 @@ module DesignManagement
@link_reference_pattern ||= begin
path_segment = %r{issues/#{Gitlab::Regex.issue}/designs}
ext = Regexp.new(Regexp.union(SAFE_IMAGE_EXT + DANGEROUS_IMAGE_EXT).source, Regexp::IGNORECASE)
- valid_char = %r{[^/\s]} # any char that is not a forward slash or whitespace
+ valid_char = %r{[[:word:]\.\-\+]}
filename_pattern = %r{
(?<url_filename> #{valid_char}+ \. #{ext})
}x