<button onclick="printLocalStorage()">storage</button>
<span style="display:inline-block; width: 20pt;"></span>
<button onclick="clearLocalStorage()">clear</button>
+ <span style="display:inline-block; width: 20pt;"></span>
+ <button onclick="location.reload()">reload</button>
<p id="localJSON">no data received</p>
</center>
</div>