Function onWebChannelSetup

src/app/assets/javascript/GreaseMonkeyAPI.js:152–158

(cb)

    };

    var onWebChannelSetup = function(cb) {
        if (window._webchannel_initialized) {
            cb();
        } else {
            document.addEventListener("_webchannel_setup", cb);
        }
    };

    GM.getValue = function(name, defaultValue) {
        return new Promise(function(resolve) {