if (document.querySelector(".index")) {
let whyUs = document.createElement("section");
whyUs.id = "cus-secs";
let wHeader = document.createElement("h1");
wHeader.innerHTML = "لماذا نحن؟";
wHeader.style = "text-align: center; color: #fff;";

let wDiv = document.createElement("div");
wDiv.id = "secs-wrapper";
wDiv.classList.add("container");

let wAnchor1 = document.createElement("a");
wAnchor1.id = "sec-link";
wAnchor1.href = "";
let wImg1 = document.createElement("img");
wImg1.id = "sec-image";
wImg1.src = "https://i.postimg.cc/NFjXxvkg/11.png";

let wAnchor2 = document.createElement("a");
wAnchor2.id = "sec-link";
wAnchor2.href = "";
let wImg2 = document.createElement("img");
wImg2.id = "sec-image";
wImg2.src = "https://i.postimg.cc/tRBW4797/22.png";

let wAnchor3 = document.createElement("a");
wAnchor3.id = "sec-link";
wAnchor3.href = "";
let wImg3 = document.createElement("img");
wImg3.id = "sec-image";
wImg3.src = "https://i.postimg.cc/RVqf690d/33.png";


document.querySelectorAll("footer")[0].before(whyUs);

whyUs.append(wDiv);
whyUs.prepend(wHeader);

wDiv.append(wAnchor1);
wAnchor1.append(wImg1);

wDiv.append(wAnchor2);
wAnchor2.append(wImg2);

wDiv.append(wAnchor3);
wAnchor3.append(wImg3);

}
<script>
  var canonicalLink = document.createElement("link");
  canonicalLink.rel = "canonical";
  canonicalLink.href = window.location.href;
  document.head.appendChild(canonicalLink);
</script>

(function() {
    document.addEventListener("DOMContentLoaded", function() {
        let links = document.querySelectorAll("a");
        links.forEach(link => {
            let url = new URL(link.href, window.location.origin);
            if (!url.pathname.endsWith("/") && !url.pathname.includes(".")) {
                link.href = url.pathname + "/" + url.search + url.hash;
            }
        });

        // إعادة توجيه الصفحة الحالية إذا لم يكن بها "/"
        if (!window.location.pathname.endsWith("/") && !window.location.pathname.includes(".")) {
            window.history.replaceState(null, "", window.location.pathname + "/" + window.location.search + window.location.hash);
        }
    });
})();



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