What problem does this feature solve?

router: component: () => import(`

return Promise.all(t.map((e=>{
    if (e in Pa)
        return;
    Pa[e] = !0;
    const t = e.endsWith(".css")
      , n = t ? '[rel="stylesheet"]' : "";
    if (document.querySelector(`link[href="${e}"]${n}`))
        return;
    const r = document.createElement("link");
    return r.rel = t ? "stylesheet" : Na,
    t || (r.as = "script",
    r.crossOrigin = ""),
    r.href = e,
    document.head.appendChild(r),
    t ? new Promise(((e,t)=>{
        r.addEventListener("load", e),
        r.addEventListener("error", t)
    }
    )) : void 0
}
))).then((()=>e()))

 if (document.querySelector(`link[href="${e}"]${n}`))
        return;  

头已经加载 但是没加载 。。。 error 怎么加

What does the proposed API look like?

$

Hi, thanks for your interest but Github issues are for bug reports and feature requests only. You can ask questions on the forum, the Discord server or StackOverflow.