End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

URI::Generic#set_scheme

set_scheme(v)

# File tmp/rubies/ruby-3.0.5/lib/uri/generic.rb, line 334
def set_scheme(v)
  @scheme = v&.downcase
end

Protected setter for the scheme component v.