app/assets/javascripts/blacklight/blacklight.esm.js in blacklight-8.0.0.beta1 vs app/assets/javascripts/blacklight/blacklight.esm.js in blacklight-8.0.0.beta2

@@ -261,13 +261,18 @@
 
       modal.show();
   };
 
   // Add the passed in contents to the modal and display it.
-modal.receiveAjax = function (contents) {
+  modal.receiveAjax = function (contents) {
       const domparser = new DOMParser();
       const dom = domparser.parseFromString(contents, "text/html");
-      const elements = dom.querySelectorAll(`${modal.containerSelector} > *`);
+      // If there is a containerSelector on the document, use it's children.
+      let elements = dom.querySelectorAll(`${modal.containerSelector} > *`);
+      if (element.length == 0) {
+        // If the containerSelector wasn't found, use the whole document
+        elements = dom.querySelectorAll(`*`);
+      }
       document.querySelector(`${modal.modalSelector} .modal-content`).replaceChildren(...elements);
 
       modal.show();
   };