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-rw-r--r--activesupport/lib/active_support/core_ext/string/strip.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/string/strip.rb b/activesupport/lib/active_support/core_ext/string/strip.rb
index cc26274e4a..6f9834bb16 100644
--- a/activesupport/lib/active_support/core_ext/string/strip.rb
+++ b/activesupport/lib/active_support/core_ext/string/strip.rb
@@ -20,6 +20,8 @@ class String
# Technically, it looks for the least indented non-empty line
# in the whole string, and removes that amount of leading whitespace.
def strip_heredoc
- gsub(/^#{scan(/^[ \t]*(?=\S)/).min}/, "".freeze)
+ gsub(/^#{scan(/^[ \t]*(?=\S)/).min}/, "".freeze).tap do |stripped|
+ stripped.freeze if frozen?
+ end
end
end