hasIndexedDB works when third party cookies off

Similar to the other try/catch statements used for checking storage, we need to wrap hasIndexedDB as well.

When third party cookies are disabled and fingerprintjs runs in an iframe then trying to access indexedDB would result in an exception preventing the fingerprint from bring calculated.

fingerprint2.js

@@ -626,7 +626,11 @@
       }
     },
     hasIndexedDB: function (){
-      return !!window.indexedDB;
+      try {
+        return !!window.indexedDB;  
+      } catch(e) {
+        return true; // SecurityError when referencing it means it exists
+      }
     },
     getNavigatorCpuClass: function () {
       if(navigator.cpuClass){