def _redirectOrJSON(result, request: http.Request, url: urlpath.URLPath, data):
try:
if request.getHeader('x-requested-with') == 'XMLHttpRequest':
request.write(json.dumps(data).encode('utf-8'))
if not request.notifyFinish().called:
request.finish()
return
except:
pass
request.redirect(str(url).encode('ascii'))
request.finish()
