localStorageWorks.js

var localStorageWorks = function(debug) {
  // simple test function to see if window.localStorage works
  try {
    window.localStorage.setItem("Test", "localStorageWorks");
    if (window.localStorage.getItem("Test") !== "localStorageWorks") {
      throw new Error("localStorage seems to be broken");
    }
    if (debug) {
      console.log("localStorageWorks: returned positive")
    }
    return true;
  }
  catch (err) {
    if (debug) {
      console.warn("localStorageWorks: returned negative")
      console.warn(err)
    }
    return false;
  }
}