? collapse_text_init_patch.txt
Index: collapse_text.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/collapse_text/collapse_text.module,v
retrieving revision 1.4.2.1
diff -u -p -r1.4.2.1 collapse_text.module
--- collapse_text.module	15 Dec 2008 15:00:33 -0000	1.4.2.1
+++ collapse_text.module	15 Dec 2008 15:18:34 -0000
@@ -72,6 +72,7 @@ function _collapse_text_replace_callback
   $title = strip_tags($h_matches[1]);
   
   if (empty($title)) {
+    // Added call to t() per #256176 yngens
     $title = t('Use the arrow to expand or collapse this section');
   }
   
@@ -89,4 +90,17 @@ function _collapse_text_replace_callback
   return drupal_render($render_array);
 }
 
-?>
+/**
+ * Implementation of hook_init().
+ *
+ * Due to caching issues, `collapse.js` is not properly added to
+ * a page when the cached version is used. This adds `collapse.js`
+ * to every page. This is not really the right way to solve the
+ * problem, but I don't know that Drupal provides us with the
+ * ability to attach CSS files to input filter caches.
+ *
+ * Per #256354 and #231529. Thanks rolf, sza, jippie1948, Justyn
+ */
+function collapse_text_init() {
+  drupal_add_js('misc/collapse.js', 'core');
+}