Sanitize WJ/EW Personal Info From URL Query String

/*
 * Sanitize WJ/EW lead personal info from query string
 * after moving the values to local storage.
 * Run before recording Facebook events.
 * Author: Brian Katzung
 */
(function () {
    var ls = location.search, params = [], reset = false;
    ls && ls.substring(1).split('&').forEach(function (param) {
    var parts = param.match(/([^=]+)=(.*)/);
    if (parts[1].match(/^wj_lead_/)) {
        localStorage.setItem(parts[1], decodeURIComponent(parts[2].replaceAll('+', ' ')));
        reset = true;
    } else {
        params.push(param);
    }
    });
    if (reset) {
        var newSearch = '?' + params.join('&');
        if (history.replaceState) history.replaceState(null, '', newSearch);
        else location.search = newSearch;
    }
})();