title: Is there a limit on what can be submitted in a JSONP request?
body: <p>Is there a limit to how long the JSONP request can be (the src url)?</p>
  
  <p>For example:</p>
  
  <pre><code>&lt;script src="https://someserver.com/submit?callback=myCallback&amp;alotofdata_maybe_5000_characters_long=true"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>Where it has a query string 5000+ characters long. Is that allowed? Will all the browsers send that? Or will some browsers cut the url off?</p>