[racket] how to get sandbox to drop errors

From: Stephen Chang (stchang at ccs.neu.edu)
Date: Fri Apr 12 15:51:10 EDT 2013

How do I get a sandbox to drop errors? The following code still
produces the divide by 0 exception. What am I doing wrong?

#lang racket

(require racket/sandbox)

(parameterize ([sandbox-output #f]
               [sandbox-error-output #f]
               [sandbox-propagate-exceptions #f]
               [sandbox-propagate-breaks #f])
  (make-evaluator 'racket (/ 1 0)))

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