diff --git a/cellxgene_gateway/filecrawl.py b/cellxgene_gateway/filecrawl.py
index aa15eef..b83d70d 100644
--- a/cellxgene_gateway/filecrawl.py
+++ b/cellxgene_gateway/filecrawl.py
@@ -45,10 +45,13 @@ def recurse_dir(path):
                     "name": x[:-13]
                     if (len(x) > 13 and x[-13] in ["-", "_"])
                     else (x[:-4] if x.endswith(".csv") else x),
-                    "path": os.path.join(full_path, x).replace(env.cellxgene_data, ""),
+                    "path": os.path.join(full_path, x).replace(
+                        env.cellxgene_data, ""
+                    ),
                 }
                 for x in sorted(os.listdir(full_path))
-                if x.endswith(".csv") and os.path.isfile(os.path.join(full_path, x))
+                if x.endswith(".csv")
+                and os.path.isfile(os.path.join(full_path, x))
             ]
         return [
             {
@@ -89,7 +92,7 @@ def render_entries(entries):
 
 
 def get_url(entry):
-    return url_for("do_view", path=entry["path"])
+    return url_for("do_view", path=entry["path"].lstrip("/"))
 
 
 def get_class(entry):
diff --git a/cellxgene_gateway/templates/cellxgene_error.html b/cellxgene_gateway/templates/cellxgene_error.html
index 908b5bf..aea6764 100644
--- a/cellxgene_gateway/templates/cellxgene_error.html
+++ b/cellxgene_gateway/templates/cellxgene_error.html
@@ -28,11 +28,11 @@
           
      <h4>{{ message }}</h4>
 
-     <a href="/filecrawl.html">
+     <a href="{{ url_for('filecrawl') }}">
           Please click here to be redirected to the file directory.
      </a>
      <br>
-     <a href="/">
+     <a href="{{ url_for('index') }}">
           Please click here to return to the homepage.
      </a>
      </div>
diff --git a/cellxgene_gateway/templates/filecrawl.html b/cellxgene_gateway/templates/filecrawl.html
index 7d59e34..e31f54d 100644
--- a/cellxgene_gateway/templates/filecrawl.html
+++ b/cellxgene_gateway/templates/filecrawl.html
@@ -36,10 +36,10 @@
           Navigation:
      <ul>
      {% if path %}
-     <li><a href="/filecrawl.html">top level</a></li>
+     <li><a href="{{ url_for('filecrawl') }}">top level</a></li>
      {% else %}
      {% endif %}
-     <li><a href="/">homepage</a></li>
+     <li><a href="{{ url_for('index') }}">homepage</a></li>
      </ul>
      </p>
      <script>
diff --git a/cellxgene_gateway/templates/loading.html b/cellxgene_gateway/templates/loading.html
index ac357b2..4ee4e2b 100644
--- a/cellxgene_gateway/templates/loading.html
+++ b/cellxgene_gateway/templates/loading.html
@@ -35,11 +35,11 @@
           The page will refresh shortly.
      </p>
 
-     <a href="/filecrawl.html">
+     <a href="{{ url_for('filecrawl') }}">
           Please click here to be redirected to the file directory.
      </a>
      <br>
-     <a href="/">
+     <a href="{{ url_for('index') }}">
           Please click here to return to the homepage.
      </a>
      </div>
diff --git a/cellxgene_gateway/templates/process_error.html b/cellxgene_gateway/templates/process_error.html
index fb8c8bd..6d13d34 100644
--- a/cellxgene_gateway/templates/process_error.html
+++ b/cellxgene_gateway/templates/process_error.html
@@ -39,10 +39,10 @@
           <li><a href="{{url_for('do_relaunch', path=dataset)}}">
                     Attempt to relaunch the cellxgene server.
                </a></li>
-          <li><a href="/filecrawl.html">
+          <li><a href="{{ url_for('filecrawl') }}">
                Return to the file directory.
           </a></li>
-          <li><a href="/">
+          <li><a href="{{ url_for('index') }}">
                Return to the homepage.
           </a></li>
      </ul>