Add GN2 Fallback link to index page and and error page/text

Also removed the error callback from the menu AJAX call since it seems to just duplicate the error message (which is also handled by the statusCode function)

3 files changed, 10 insertions, 4 deletions

diff --git a/gn2/wqflask/static/new/javascript/dataset_select_menu_orig.js b/gn2/wqflask/static/new/javascript/dataset_select_menu_orig.js
index 2875eabd..1a738e2d 100644
--- a/gn2/wqflask/static/new/javascript/dataset_select_menu_orig.js
+++ b/gn2/wqflask/static/new/javascript/dataset_select_menu_orig.js
@@ -14,9 +14,14 @@ range = function(size, startAt=0) {
 indicate_error = function (jqXHR, textStatus, errorThrown) {
   errorElement = document.createElement("span");
   errorElement.setAttribute("class", "alert-danger");
+  fallbackLink = document.createElement('a');
+  fallbackLink.href = "https://fallback.genenetwork.org";
+  fallbackLink.title = "GN2 Fallback";
+  fallbackLink.appendChild(document.createTextNode("GN2 Fallback Server."));
   errorText = document.createTextNode(
-	  "There was an error retrieving and setting the menu. Try again later.");
+	  "There was an error retrieving and setting the menu. Try visiting the ");
   errorElement.appendChild(errorText);
+  errorElement.appendChild(fallbackLink);
   if (document.getElementById("search")){
     form = document.getElementById("search").getElementsByTagName("form")[0];
     form.prepend(errorElement);
@@ -41,7 +46,6 @@ if (typeof gn_server_url === 'undefined'){
 $.ajax(gn_server_url +'/menu/generate/json', {
   dataType: 'json',
   success: process_json,
-  error: indicate_error,
   statusCode: {
 	  ...defaultStatusCodeFunctions,
   }
diff --git a/gn2/wqflask/templates/error.html b/gn2/wqflask/templates/error.html
index 7d2b2625..f38d6dca 100644
--- a/gn2/wqflask/templates/error.html
+++ b/gn2/wqflask/templates/error.html
@@ -14,7 +14,7 @@
     <p>
       This error is not what we wanted to see. Unfortunately errors
       are part of all software systems and we need to resolve this
-      together.
+      together. Try using the GN2 <a href="https://fallback.genenetwork.org/">Fallback instance.</a>
     </p>
     <p>
       <b>It is important to report this ERROR so we can fix it for everyone</b>.
diff --git a/gn2/wqflask/templates/index_page.html b/gn2/wqflask/templates/index_page.html
index 7044e9e3..bacf7557 100755
--- a/gn2/wqflask/templates/index_page.html
+++ b/gn2/wqflask/templates/index_page.html
@@ -412,12 +412,14 @@
                     </ul>
                 </ul>
                 <ul>
-                    <li>GeneNetwork v2</li>
+                    <li>GeneNetwork 2</li>
                     <ul>
                         <li>
                             <a href="https://genenetwork.org/">Main website</a> at UTHSC
                         </li>
+                        <li><a href="https://fallback.genenetwork.org/">Backup</a> instance of GN2</li>
                     </ul>
+
                 </ul>
                 <ul>
                     <li>GeneNetwork v1</li>