one/dist/esm/skewProtection.js

One is a new React Framework that makes Vite serve both native and web.

import { CACHE_KEY } from "./constants";
import { getURL } from "./getURL";
let stale = !1, polling = null;
function isVersionStale() {
  return !!(stale || typeof window < "u" && window.__oneVersionStale);
}
function setupSkewProtection() {
  if (typeof window > "u" || process.env.NODE_ENV === "development" || process.env.ONE_SKEW_PROTECTION !== "proactive") return;
  const POLL_INTERVAL = 12e4, baseUrl = getURL();
  async function check() {
    try {
      const res = await fetch(`${baseUrl}/version.json`, {
        headers: { "cache-control": "no-cache", pragma: "no-cache" }
      });
      if (!res.ok) {
        polling = setTimeout(check, POLL_INTERVAL);
        return;
      }
      const data = await res.json();
      if (data.version !== CACHE_KEY) {
        stale = !0, window.__oneVersionStale = !0, window.dispatchEvent(
          new CustomEvent("one-version-update", { detail: { version: data.version } })
        );
        return;
      }
    } catch {
    }
    polling = setTimeout(check, POLL_INTERVAL);
  }
  polling = setTimeout(check, POLL_INTERVAL);
}
export {
  isVersionStale,
  setupSkewProtection
};
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