add localStorage polyfill for IE < 8

assets/storage-polyfill.js

@@ -0,0 +1,92 @@
+if (!window.localStorage || !window.sessionStorage) (function () {
+
+var Storage = function (type) {
+  function createCookie(name, value, days) {
+    var date, expires;
+
+    if (days) {
+      date = new Date();
+      date.setTime(date.getTime()+(days*24*60*60*1000));
+      expires = "; expires="+date.toGMTString();
+    } else {
+      expires = "";
+    }
+    document.cookie = name+"="+value+expires+"; path=/";
+  }
+
+  function readCookie(name) {
+    var nameEQ = name + "=",
+        ca = document.cookie.split(';'),
+        i, c;
+
+    for (i=0; i < ca.length; i++) {
+      c = ca[i];
+      while (c.charAt(0)==' ') {
+        c = c.substring(1,c.length);
+      }
+
+      if (c.indexOf(nameEQ) == 0) {
+        return c.substring(nameEQ.length,c.length);
+      }
+    }
+    return null;
+  }
+  
+  function setData(data) {
+    data = JSON.stringify(data);
+    if (type == 'session') {
+      window.top.name = data;
+    } else {
+      createCookie('localStorage', data, 365);
+    }
+  }
+  
+  function clearData() {
+    if (type == 'session') {
+      window.top.name = '';
+    } else {
+      createCookie('localStorage', '', 365);
+    }
+  }
+  
+  function getData() {
+    var data = type == 'session' ? window.top.name : readCookie('localStorage');
+    return data ? JSON.parse(data) : {};
+  }
+
+
+  // initialise if there's already data
+  var data = getData();
+
+  return {
+    clear: function () {
+      data = {};
+      clearData();
+    },
+    getItem: function (key) {
+      return data[key] || null;
+    },
+    key: function (i) {
+      // not perfect, but works
+      var ctr = 0;
+      for (var k in data) {
+        if (ctr == i) return k;
+        else ctr++;
+      }
+      return null;
+    },
+    removeItem: function (key) {
+      delete data[key];
+      setData(data);
+    },
+    setItem: function (key, value) {
+      data[key] = value+''; // forces the value to a string
+      setData(data);
+    }
+  };
+};
+
+if (!window.localStorage) window.localStorage = new Storage('local');
+if (!window.sessionStorage) window.sessionStorage = new Storage('session');
+
+})();

proj/index.html

@@ -7,6 +7,7 @@
   <!--[if lt IE 8]>
   <link rel=stylesheet href=../assets/ie7.css>
   <script src=http://d1eqzjbvoh1rux.cloudfront.net/json2.min.js></script>
+  <script src=../assets/storage-polyfill.js></script>
   <![endif]-->
   <style>
     #gh { text-align: center }

templates/proj/index.html

@@ -7,6 +7,7 @@
   <!--[if lt IE 8]>
   <link rel=stylesheet href=../assets/ie7.css>
   <script src=http://d1eqzjbvoh1rux.cloudfront.net/json2.min.js></script>
+  <script src=../assets/storage-polyfill.js></script>
   <![endif]-->
   <style>
     #gh { text-align: center }

templates/proj/proj/index.html

@@ -19,6 +19,7 @@
   </script>
   <!--[if lt IE 8]>
   <script src=http://d1eqzjbvoh1rux.cloudfront.net/json2.min.js></script>
+  <script src=../../assets/storage-polyfill.js></script>
   <![endif]-->
   <script src=../../assets/gitter.js></script>
   <script src=../../assets/store.js></script>