Fixing PR #66 (#67)

* Revert "Revert "Fix github unicorn error and cache" (#66)"

This reverts commit d8faee5.

* fixing code not loading on chromium

Author: Gil Mizrahi

js/index.js

@@ -126,7 +126,7 @@ $(function() {
         location.href = "?backend=" + backend.backend;
       } else {
         setTimeout(function() {
-          compile(backend);
+          compile();
           cacheCurrentCode(backend);
         }, 1000);
       }
@@ -173,13 +173,14 @@ $(function() {
       }
       if (code) {
         $('#code_textarea').val(code);
+        return backend;
       }
     }
   }
 
   var editor, cleanupActions = [];
 
-  var setupEditorWith = function(name, ta_name, lang, backend) {
+  var setupEditorWith = function(name, ta_name, lang) {
 
     editor = ace.edit(name);
 
@@ -200,13 +201,14 @@ $(function() {
 
       $('#' + ta_name).val(session.getValue());
 
+      var backend = getBackend($('input[name=backend_inputs]').filter(':checked').val());
       cacheCurrentCode(backend);
       if ($("#auto_compile").is(":checked")) {
-        compile(backend);
+        compile();
       }
     }, 750));
 
-    compile(backend);
+    compile();
   };
 
   var hideMenus = function() {
@@ -218,7 +220,7 @@ $(function() {
   var setupEditor = function(backend) {
 
     loadOptions(backend);
-    setupEditorWith('code', 'code_textarea', 'ace/mode/haskell', backend);
+    setupEditorWith('code', 'code_textarea', 'ace/mode/haskell');
     cacheCurrentCode(backend);
   };
 
@@ -287,9 +289,9 @@ $(function() {
 
   };
 
-  var compile = function(backend) {
+  var compile = function() {
 
-    backend = backend || getBackend($('input[name=backend_inputs]').filter(':checked').val());
+    backend = getBackend($('input[name=backend_inputs]').filter(':checked').val());
 
     $('#column2')
       .empty()
@@ -495,9 +497,12 @@ $(function() {
   });
 
   var sessionId = setupSession();
-  tryRestoreCachedCode(sessionId);
-
-  var backend = getBackend($.QueryString["backend"]);
-  var gist = $.QueryString["gist"] || backend.mainGist;
-  loadFromGist(gist, backend);
+  var cachedBackend = tryRestoreCachedCode(sessionId);
+  if (cachedBackend) {
+      setupEditor(getBackend(cachedBackend));
+  } else {
+    var backend = getBackend($.QueryString["backend"]);
+    var gist = $.QueryString["gist"] || backend.mainGist;
+    loadFromGist(gist, backend);
+  }
 });