[racket] C:\Program Files (x86)\Racket\collects\web-server\private\dispatch-server-unit.rkt:96:6: tcp-write: error writing system error: Unknown error; errno=10053

program below does direct browser to the site requested but at same time also gives an error.
How can I work around this error ?  Used this with chrome as default browser. Is there a way to select different browsers without having to change default browser setting? 

#lang racket

(require (planet esilkensen/yaml:2:=1)) 
(require (planet dyoo/browser-evaluate:1:0))
(require (planet gh/sha:1:1))         

(define (go-site url)
  (let* ( (code (format  " window.location.href ='~a'; $SUCC(1);" url )) )
     (write (format  "exec ~a" code ))
     (js-evaluate code ) ))

;
(go-site "https://www.coursera.org/")

fails with 

(evaluated "" "1" 1 "Chrome 25/Windows")
. . C:\Program Files (x86)\Racket\collects\web-server\private\dispatch-server-unit.rkt:96:6: tcp-write: error writing
  system error: Unknown error; errno=10053
> 
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