title: JSON: why are forward slashes escaped?
body: <p>The reason for this "escapes" me.</p>
  
  <p><a href="http://www.json.org/" rel="noreferrer">JSON</a> escapes the forward slash, so a hash <code>{a: "a/b/c"}</code> is serialized as <code>{"a":"a\/b\/c"}</code> instead of <code>{"a":"a/b/c"}</code>.</p>
  
  <p>Why?</p>