try fixing inline expand again

contrib/js/expand-image.js

@@ -16,9 +16,7 @@ function setupInlineImage(thumb, url) {
   var img = thumb.querySelector("img.thumbnail");
   var expanded = false;
   var oldurl = img.src;
-  thumb.href = "#";
-  thumb.target = undefined;
-  img.addEventListener("click", function(ev) {
+  thumb.onclick = function() {
     if (expanded) {
       img.setAttribute("class", "thumbnail");
       img.src = oldurl;
@@ -28,7 +26,8 @@ function setupInlineImage(thumb, url) {
       img.src = url;
       expanded = true;
     }
-  }, false);
+    return false;
+  }
 }
 
 // set up image inlining for all applicable children in an element