class ExecJS::RubyRhinoRuntime::Context

def fix_memory_limit!(context)

Disables bytecode compiling which limits you to 64K scripts 
def fix_memory_limit!(context)
  if context.respond_to?(:optimization_level=)
    context.optimization_level = -1
  else
    context.instance_eval { @native.setOptimizationLevel(-1) }
  end
end