diff --git a/swh/web/ui/templates/includes/home-directory.html b/swh/web/ui/templates/includes/home-directory.html
index db41f713f..e13a70d55 100644
--- a/swh/web/ui/templates/includes/home-directory.html
+++ b/swh/web/ui/templates/includes/home-directory.html
@@ -1,111 +1,111 @@
 <div class="simple-search">
   <div class="row simple-desc container-fluid">
     Search a directory according to its SHA1 checksum
   </div>
   <form method="get" action="{{ url_for('search_directory') }}">
     <div class="row">
       <div class="col-md-6 required">
         <label for="dir-sha1">Directory ID</label>
         <div class="input-group">
           <input id="dir-sha1" class="form-control"
                  type="text" placeholder="directory git SHA1"
                  name="sha1_git" required="true"/>
           <span class="input-group-btn">
             <button class="btn btn-primary" type="submit">
               <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
             </button>
           </span>
           <a class="input-group-addon" data-toggle="collapse" href="#dir-dir-collapse">Options</a>
         </div>
       </div>
       <div class="col-md-6">
         <div id="dir-dir-collapse" class="collapse">
           <label for="dir-path-1">Path within directory</label>
           <input id="dir-path-1" class="optional form-control"
                  type="text" placeholder="path" name="path/">
         </div>
       </div>
     </div>
   </form>
 </div>
 <hr/>
 <div class="text-center">
   <a data-toggle="collapse" href="#dir-advanced-search">Advanced search</a>
 </div>
-<div id="dir-advanced-search" data-toggle="collapse" class="collapse advanced-search">
+<div id="dir-advanced-search" class="collapse advanced-search">
   <div class="row advanced-desc container-fluid">
     You can also refer to a directory either:
     <ul>
       <li>
         as a request for the content of a revision identified in absolute
         terms by its git SHA1.
       </li>
       <li>
         as a request for the content of a revision matching a
         given time and place, with place the origin of the directory (and optionally its
         branch name), and time a timestamp of when we collected it (or as close to the
         timestamp as we can provide).
       </li>
     </ul>
     In all cases, you may also specify a path within the top-level directory to which you
     would like the results to be constrained.
   </div>
   <div>
     <form method="get" action="{{ url_for('search_directory') }}">
       <div class="forms-group row">
         <div class="col-md-6 required">
           <label for="dir-rev-sha1">Revision ID</label>
           <div class="input-group">
             <input id="dir-rev-sha1" class="form-control"
                    type="text" placeholder="revision git SHA1"
                    name="sha1_git" required="true"/>
             <span class="input-group-btn">
               <button class="btn btn-primary" type="submit">
                 <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
               </button>
             </span>
             <a class="input-group-addon" data-toggle="collapse" href="#dir-rev-collapse">Options</a>
           </div>
         </div>
         <div class="col-md-6">
           <div id="dir-rev-collapse" class="collapse">
             <label for="dir-path-2">Path within directory</label>
             <input id="dir-path-2" class="optional form-control"
                    type="text" placeholder="path" name="dir_path"/>
           </div>
         </div>
       </div>
     </form>
     <form method="get" action="{{ url_for('search_directory') }}">
       <div class="form-groups row">
         <div class="col-md-6">
           <label for="dir-origin-id">Origin ID</label>
           <div class="input-group">
             <input id="dir-origin-id" class="form-control"
                    type="text" placeholder="origin id"
                    name="origin_id" required="true"/>
             <span class="input-group-btn">
               <button class="btn btn-primary" type="submit">
                 <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
               </button>
             </span>
             <a class="input-group-addon" data-toggle="collapse" href="#dir-origin-collapse">Options</a>
           </div>
         </div>
         <div class="col-md-6">
           <div id="dir-origin-collapse" class="collapse">
             <label for="dir-branchname">Branch name</label>
             <input id="dir-branchname" class="optional form-control"
                    type="text" placeholder="refs/heads/master" name="branch_name"/>
             <label for="dir-timestamp">Timestamp</label>
             <input id="dir-timestamp" class="optional form-control"
                    type="text" placeholder="timestamp" name="ts"/>
             <label for="dir-path-3">Path within the directory</label>
             <input id="dir-path-3" class="optional form-control"
                    type="text" placeholder="path" name="path"/>
           </div>
         </div>
       </div>
     </form>
   </div>
 </div>
diff --git a/swh/web/ui/templates/includes/home-origin.html b/swh/web/ui/templates/includes/home-origin.html
index 11bbb3577..b13f089cd 100644
--- a/swh/web/ui/templates/includes/home-origin.html
+++ b/swh/web/ui/templates/includes/home-origin.html
@@ -1,57 +1,57 @@
 <div class="simple-search">
   <div class="row simple-desc container-fluid">
     Search an origin according to its SWH ID
   </div>
   <form method="get" action="{{ url_for('search_origin') }}">
     <div class="row">
       <div class="col-md-12">
         <label>Origin ID</label>
         <div class="input-group">
           <input class="form-control" type="text" placeholder="origin SWH ID" name="origin_id" required="true"/>
           <span class="input-group-btn">
             <button class="btn btn-primary" type="submit">
               <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
             </button>
           </span>
         </div>
       </div>
     </div>
   </form>
 </div>
 <hr/>
 <div class="text-center">
   <a data-toggle="collapse" href="#origin-advanced-search">Advanced search</a>
 </div>
-<div id="origin-advanced-search" data-toggle="collapse" class="collapse advanced-search">
+<div id="origin-advanced-search" class="collapse advanced-search">
   <div class="row advanced-desc container-fluid">
     You can also refer to a directory in a relative manner, as the combination of the type of origin (git, debian, tarball...)
     and the URL at which the origin is located.
   </div>
   <div>
     <form method="get" action="{{ url_for('search_origin') }}">
       <div class="forms-group row">
         <div class="col-md-12">
           <div class="input-group multi-input-group">
             <label for="origin-type">Origin type</label>
             <input id="origin-type"
                    class="form-control"
                    type="text" placeholder="origin type"
                    name="origin_type" required="true"/>
             <div class="input-group-field">
               <label for="origin-url">Origin URL</label>
               <input id="origin-url"
                      class="form-control"
                      type="text" placeholder="origin url"
                      name="origin_url" required="true"/>
             </div>
             <span class="input-group-btn">
               <button id="origin-dummy-btn" class="btn btn-primary" type="submit">
                 <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
               </button>
             </span>
           </div>
         </div>
       </div>
     </form>
   </div>
 </div>
diff --git a/swh/web/ui/templates/includes/home-revision.html b/swh/web/ui/templates/includes/home-revision.html
index d5f09cb39..590e7db9c 100644
--- a/swh/web/ui/templates/includes/home-revision.html
+++ b/swh/web/ui/templates/includes/home-revision.html
@@ -1,66 +1,66 @@
 <div class="simple-search">
   <div class="row simple-desc container-fluid">
     Search a revision according to its SHA1 identifier
   </div>
   <form method="get" action="{{ url_for('search_revision') }}">
     <div class="row">
       <div class="col-md-12">
         <label for="rev-sha1">Revision SHA1</label>
         <div class="input-group">
           <input id="rev-sha1" class="form-control"
                  type="text" placeholder="git SHA1"
                  name="sha1_git" required="true"/>
           <span class="input-group-btn">
             <button class="btn btn-primary" type="submit">
               <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
             </button>
           </span>
         </div>
       </div>
     </div>
   </form>
 </div>
 <hr/> 
 <div class="text-center">
   <a data-toggle="collapse" href="#rev-advanced-search">Advanced search</a>
 </div>
-<div id="rev-advanced-search" data-toggle="collapse" class="collapse advanced-search">
+<div id="rev-advanced-search" class="collapse advanced-search">
   <div class="row advanced-desc container-fluid">
     You can also refer to a revision as an SWH time and place, time being a timestamp of when we
     collected it (or as close to the timestamp as we can provide), place being an origin, and
     optionally a branch name within the origin. See the origin section to search for origins in
     SWH and find out their identifier.
   </div>
   <div>
     <form method="get" action="{{ url_for('search_revision') }}">
       <div class="forms-group row">
         <div class="col-md-6 required">
           <label>Revision Origin ID</label>
           <div class="input-group">
             <input class="form-control" type="text" placeholder="revision git SHA1" name="sha1_git" required="true"/>
             <span class="input-group-btn">
               <button class="btn btn-primary" type="submit">
                 <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
               </button>
             </span>
             <a class="input-group-addon" data-toggle="collapse" href="#rev-tandp-collapse">Options</a>
           </div>
         </div>
         <div class="col-md-6">
           <div id="rev-tandp-collapse" class="collapse">
             <label for="rev-branchname">Branch name</label>
             <input id="rev-branchname"
                    class="optional form-control"
                    type="text" placeholder="refs/heads/master"
                    name="branch_name"/>
             <label for="rev-timestamp">Timestamp</label>
             <input id="rev-timestamp"
                    class="optional form-control"
                    type="text" placeholder="timestamp"
                    name="ts"/>
           </div>
         </div>
       </div>
     </form>
   </div>
 </div>