I found what is the cause. The problem is Case Sensitive in my cent os. "http://localhost/documentation/SlothCreator" requests /data/documentation/SlothCreator.json, but the file name is /data/documentation/slothcreator.json. So I added follows to the .htaccess. RewriteRule /data/documentation/SlothCreator.json /data/documentation/slothcreator.json then It works well.