title: How to send HTTP requests without opening up windows in Javascript?
body: <p>Now I'm trying to open a series of URLs with <code>window.open</code></p>
  
  <pre><code>for(i=0;i&lt;10;i++)
  {
      window.open("myapp://arg1/arg2/arg3/number_"+i);
  }
  </code></pre>
  
  <p>It works fine except popping up ten windows.And I wonder if there's any way to do this work with windows not shown? Help would be appreciated!</p>