index.js
function getUrlDelay(url) {
    var delay;
    if (options.url && !options.url.test(url)) {
      delay = 0;
    }

    return delay;
  }
function getUrlDelay(url) {
    var delay;
    if (options.url && !options.url.test(url)) {
      delay = 0;
    }

    return delay;
  }
function getUrlDelay ( url ) { var delay ; if ( options . url && ! options . url . test ( url ) ) { delay = 0 ; } return delay ; }
Return the url delay if it makes sense for this request, else undefined
Return the url delay if it makes sense for this request else undefined