https://grill-master-smp.web.app/iframe-embed-bridge.js

1(function () {
2  if (window.top === window.self) return;
3
4  const MESSAGE_TYPE = "gm-wordpress-embed";
5  let frame = 0;
6
7  function markEmbedMode() {
8    document.documentElement.classList.add("gm-embed");
9    if (document.body) {
10      document.body.classList.add("gm-embed");
11    }
12  }
13
14  function currentHeight() {
15    const body = document.body;
16    const candidates = body ? Array.from(body.children).filter((element) => {
17      const style = window.getComputedStyle(element);
18      if (style.display === "none" || style.visibility === "hidden") return false;
19      if (style.position === "fixed") return false;
20      return true;
21    }) : [];
22    const contentBottom = candidates.reduce((max, element) => {
23      const rect = element.getBoundingClientRect();
24      return Math.max(max, rect.bottom + window.scrollY);
25    }, 0);
26    const main = document.querySelector("main");
27    const mainBottom = main
28      ? main.getBoundingClientRect().bottom + window.scrollY
29      : 0;
30
31    return Math.ceil(Math.max(contentBottom, mainBottom, 0));
32  }
33
34  function post(reason) {
35    window.cancelAnimationFrame(frame);
36    frame = window.requestAnimationFrame(() => {
37      window.parent.postMessage(
38        {
39          type: MESSAGE_TYPE,
40          reason: String(reason || "update"),
41          href: window.location.href,
42          path: `${window.location.pathname}${window.location.search}${window.location.hash}`,
43          title: document.title || "",
44          height: currentHeight(),
45        },
46        "*"
47      );
48    });
49  }
50
51  function boot() {
52    markEmbedMode();
53    post("boot");
54
55    window.addEventListener("load", () => post("load"));
56    window.addEventListener("resize", () => post("resize"));
57    window.addEventListener("pageshow", () => post("pageshow"));
58
59    if ("ResizeObserver" in window && document.body) {
60      const resizeObserver = new ResizeObserver(() => post("resize-observer"));
61      resizeObserver.observe(document.body);
62      if (document.documentElement) resizeObserver.observe(document.documentElement);
63    }
64
65    if ("MutationObserver" in window && document.documentElement) {
66      const mutationObserver = new MutationObserver(() => post("mutation"));
67      mutationObserver.observe(document.documentElement, {
68        childList: true,
69        subtree: true,
70        attributes: true,
71      });
72    }
73
74    window.setInterval(() => post("interval"), 1200);
75  }
76
77  if (document.readyState === "loading") {
78    document.addEventListener("DOMContentLoaded", boot, { once: true });
79  } else {
80    boot();
81  }
82})();