Issue #10529 has been reported by Justin Coyne. ---------------------------------------- Backport #10529: r42709 IO.copy_stream should write in binary mode. https://bugs.ruby-lang.org/issues/10529 * Author: Justin Coyne * Status: Open * Priority: Normal * Assignee: ---------------------------------------- Original issue: https://bugs.ruby-lang.org/issues/8767 -- https://bugs.ruby-lang.org/