@virtualstate/app-history/esnext/polyfill.js

Native JavaScript [app-history](https://github.com/WICG/app-history) implementation

console.warn("THIS POLYFILL IS NOT COMPLETE, FOR EXAMPLE IT DOES NOT TAKE INTO ACCOUNT IFRAMES, OR URL UPDATES");
console.warn("PLEASE RAISE INTEREST AT https://github.com/virtualstate/app-history/issues");
/* c8 ignore start */
import { AppHistory } from "./app-history.js";
console.log("Polyfill checking load");
let filled;
if (typeof window !== "undefined" && !window.appHistory) {
    console.log("Polyfill checking loading");
    filled = new AppHistory();
    // Add usage of transitionWhile for initial navigation to prevent network navigation
    filled.addEventListener("navigate", (event) => event.transitionWhile(Promise.resolve()), { once: true });
    await filled.navigate(window.location.href, window.history?.state).finished;
    console.log("Polyfill checking loaded");
    try {
        Object.defineProperty(window, "appHistory", {
            value: filled
        });
    }
    catch (e) {
    }
    try {
        Object.defineProperty(self, "appHistory", {
            value: filled
        });
    }
    catch (e) {
    }
    try {
        Object.defineProperty(globalThis, "appHistory", {
            value: filled
        });
    }
    catch (e) {
    }
}
export default filled;
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