Function loadPending

docs/app/js/sanddance-app.js:107888–107899

(df)

    return res;
}
function loadPending(df) {
    let accept;
    const pending = new Promise((a)=>accept = a);
    pending.requests = 0;
    pending.done = ()=>{
        if (--pending.requests === 0) {
            df._pending = null;
            accept(df);
        }
    };
    return df._pending = pending;
}
const SKIP = {
    skip: true
};