diff --git a/js/search_shop_link.js b/js/search_shop_link.js
index 13dd97c..1f8d074 100644
--- a/js/search_shop_link.js
+++ b/js/search_shop_link.js
@@ -1,23 +1,46 @@
-(function waitForBookWrappers(imageUrl) {
-    const interval = setInterval(() => {
-        const bookWrappers = document.querySelectorAll(".book-wrapper");
-        if (bookWrappers.length === 0) return; 
+function addShopLinks(imageUrl) {
+    document.querySelectorAll(".book-wrapper").forEach(wrapper => {
+        if (wrapper.querySelector(".shop_link")) return;
 
-        bookWrappers.forEach(wrapper => {
-            const coverLink = wrapper.querySelector(".sp__the-cover a");
-            if (!coverLink || wrapper.querySelector(".shop_link")) return;
+        const coverLink = wrapper.querySelector(".sp__the-cover a");
+        if (!coverLink) return;
 
-            const hrefParts = coverLink.getAttribute("href").split("/");
-            const isbn = hrefParts[1];
+        const href = coverLink.getAttribute("href");
+        const isbn = href.split("/")[1];
+        if (!isbn) return;
 
-            const shopLink = document.createElement("p");
-            shopLink.innerHTML = `<a class="shop_link" href="https://cdcshoppingcart.uchicago.edu/Cart2/ChicagoBook?ISBN=${isbn}&PRESS=wvp" target="_blank">
-                                      <img src="${imageUrl}" alt="Shop Link">
-                                  </a>`;
+        const shopLink = document.createElement("p");
+        shopLink.innerHTML = `
+            <a class="shop_link" href="https://cdcshoppingcart.uchicago.edu/Cart2/ChicagoBook?ISBN=${isbn}&PRESS=wvp" target="_blank">
+                <img src="${imageUrl}" alt="Shop Link">
+            </a>
+        `;
 
-            wrapper.appendChild(shopLink);
-        });
+        wrapper.appendChild(shopLink);
+    });
+}
+
+function waitForImageUrl(callback) {
+    if (window.SearchShopLinkData && window.SearchShopLinkData.imageUrl) {
+        callback(window.SearchShopLinkData.imageUrl);
+    } else {
+        setTimeout(() => waitForImageUrl(callback), 50);
+    }
+}
+
+waitForImageUrl(function(imageUrl) {
+
+    // Run once in case elements already exist
+    addShopLinks(imageUrl);
+
+    // Watch for dynamically added book wrappers
+    const observer = new MutationObserver(() => {
+        addShopLinks(imageUrl);
+    });
+
+    observer.observe(document.body, {
+        childList: true,
+        subtree: true
+    });
+});
 
-        clearInterval(interval);
-    }, 100);
-})(window.searchShopLinkImageUrl); // Pass URL dynamically
diff --git a/plugin.php b/plugin.php
index c3271df..14e4e65 100644
--- a/plugin.php
+++ b/plugin.php
@@ -26,18 +26,31 @@ add_action('template_redirect', function() {
 });
 
 
-
 function enqueue_shop_links_script() {
-    if (is_singular()) { 
-        wp_enqueue_script('search_shop_link',plugins_url('/js/search_shop_link.js', __FILE__));
-    wp_add_inline_script( 'search_shop_link', 'window.searchShopLinkImageUrl = "' . plugins_url('assets/cart_add.png', __FILE__) . '";'  );
-    
+    if (is_singular()) {
+
+        // 1. Enqueue your JS file
+        wp_enqueue_script(
+            'search_shop_link',
+            plugins_url('js/search_shop_link.js', __FILE__),
+            [],
+            false,
+            true
+        );
+
+        // 2. Localize data for that script
+        wp_localize_script(
+            'search_shop_link',
+            'SearchShopLinkData',
+            [
+                'imageUrl' => plugins_url('assets/cart_add.png', __FILE__)
+            ]
+        );
     }
 }
 add_action('wp_enqueue_scripts', 'enqueue_shop_links_script');
 
 
-
 function br_replace_book_wrapper($html) {
     if (strpos($html, 'product-details') === false) {
         return $html;