idebug.js

var oldPut = IDBObjectStore.prototype.put, 
    oldGet = IDBObjectStore.prototype.get;
    
IDBObjectStore.prototype.put = function (o) {
   // create a debuggable point...
   return oldPut.call(this, o);
}
IDBObjectStore.prototype.get = function (o) {
   // create a debuggable point...
   return oldGet.call(this, o);
}