try {
    var clq = document.location.href
        .toString()
        .split("=")[1].split(":")[2]
}
catch (e) {
    alert(
        "You must be in a started, saved Originator task!");
    throw new Error
}
var clq_pattern = new RegExp(
    '^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$'
    , 'i');

if (!clq || !clq_pattern.test(clq)) {
    alert(
        "You must be in a started, saved Originator task!");
    throw new Error
}

if (!clq_pattern.test(clq)) {
    alert("The CLQ is invalid: " + clq +
        "\n" +
        "Please report me to the developer.");
    throw new Error
}

var getJSON = function (url, callback) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'json';
    xhr.onload = function () {
        var status = xhr.status;
        if (status === 200) {
            callback(null, xhr.response);
        }
        else {
            callback(status, xhr.response);
        }
    };
    xhr.send();
};

if (!localStorage.getItem("shotChanges:" + clq)) {

    getJSON("https://originator.backlot.netflix.com/api/request/shotchanges/clq:origination:" +
        clq
        , function (err, data) {
            if (err !== null) {
                alert('Something went wrong with error status: ' +
                    err +
                    '\nIf it\'s 500-something, please reload the page and try again.'
                    );
            }
            else {
                localStorage.setItem("shotChanges:" + clq, data["frameNumbers"])
                alert("Shot changes for " + clq + " set!");
            }
        })
}
else {
    alert("Shot changes for this task already in cache.");
}