1 files changed, 3 insertions, 57 deletions
diff --git a/src/content/dependencies/generateStickyHeadingContainer.js b/src/content/dependencies/generateStickyHeadingContainer.js
index ab607a4f..7cfbcf50 100644
--- a/src/content/dependencies/generateStickyHeadingContainer.js
+++ b/src/content/dependencies/generateStickyHeadingContainer.js
@@ -28,63 +28,9 @@ export default {
             html.tag('div', {class: 'content-sticky-heading-cover'},
               {[html.onlyIfContent]: true},
 
-              (() => {
-                if (html.isBlank(slots.cover)) {
-                  return html.blank();
-                }
-
-                // Try very hard to set the cover's 'mode' slot to 'thumbnail'
-                // and its 'details' slot to html.blank().
-                let setMode = false;
-                let setDetails = false;
-                let cover = slots.cover;
-                while (true) {
-                  if (!cover) {
-                    return html.blank();
-                  }
-
-                  if (!(cover instanceof html.Template)) {
-                    return cover;
-                  }
-
-                  // The cover from `slots` is already cloned (since it's
-                  // mutable), but later ones are not, and for extremely scary
-                  // content function infrastructure reasons, it is possible
-                  // for the identity of the content of the clone-template
-                  // to be the same as the cloned template.
-                  if (cover !== slots.cover) {
-                    cover = cover.clone();
-                  }
-
-                  if (!setMode) {
-                    try {
-                      cover.setSlot('mode', 'thumbnail');
-                      setMode = true;
-                    } catch {
-                      // No mode slot, or it doesn't allow 'thumbnail'.
-                    }
-                  }
-
-                  if (!setDetails) {
-                    try {
-                      cover.setSlot('details', html.blank());
-                      setDetails = true;
-                    } catch {
-                      // No details slot, or it doesn't allow html.blank().
-                      // We're setting a blank instead of null because null is
-                      // always allowed, and can carry a different semantic
-                      // meaning, like "put something else here by default
-                      // instead please".
-                    }
-                  }
-
-                  if (setMode && setDetails) {
-                    return cover;
-                  }
-
-                  cover = cover.content;
-                }
-              })())),
+              (html.isBlank(slots.cover)
+                ? html.blank()
+                : slots.cover.slot('mode', 'thumbnail')))),
         ]),
 
         html.tag('div', {class: 'content-sticky-subheading-row'},